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Finding the Fourth Proportional to 1,978,307.43, 2,971,657.31 and 1,863,130.47

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Solution

The fourth proportional to 1,978,307.43, 2,971,657.31 and 1,863,130.47 is: 2,798,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,307.43 : 2,971,657.31 = 1,863,130.47 : x
  2. Step 2: Convert to fraction form
    1,978,307.43/2,971,657.31 = 1,863,130.47/x
  3. Step 3: Cross multiply
    1,978,307.43x = 2,971,657.31 × 1,863,130.47
  4. Step 4: Simplify right side
    1,978,307.43x = 5,536,585,271,343.58
  5. Step 5: Solve for x
    x = 5,536,585,271,343.58/1,978,307.43
  6. Step 6: Final answer
    x = 2,798,647.56

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