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Finding the Fourth Proportional to 1,978,936.87, 2,730,993.84 and 1,119,479.89

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Solution

The fourth proportional to 1,978,936.87, 2,730,993.84 and 1,119,479.89 is: 1,544,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,936.87 : 2,730,993.84 = 1,119,479.89 : x
  2. Step 2: Convert to fraction form
    1,978,936.87/2,730,993.84 = 1,119,479.89/x
  3. Step 3: Cross multiply
    1,978,936.87x = 2,730,993.84 × 1,119,479.89
  4. Step 4: Simplify right side
    1,978,936.87x = 3,057,292,683,593.88
  5. Step 5: Solve for x
    x = 3,057,292,683,593.88/1,978,936.87
  6. Step 6: Final answer
    x = 1,544,916.73

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