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Finding the Fourth Proportional to 1,989,862.80, 2,978,443.80 and 1,569,958.80

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Solution

The fourth proportional to 1,989,862.80, 2,978,443.80 and 1,569,958.80 is: 2,349,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,862.80 : 2,978,443.80 = 1,569,958.80 : x
  2. Step 2: Convert to fraction form
    1,989,862.80/2,978,443.80 = 1,569,958.80/x
  3. Step 3: Cross multiply
    1,989,862.80x = 2,978,443.80 × 1,569,958.80
  4. Step 4: Simplify right side
    1,989,862.80x = 4,676,034,054,115.44
  5. Step 5: Solve for x
    x = 4,676,034,054,115.44/1,989,862.80
  6. Step 6: Final answer
    x = 2,349,927.87

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