Finding the Fourth Proportional to 2,897,086.64, 3,998,714.46 and 1,979,687.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,897,086.64 : 3,998,714.46 = 1,979,687.12 : x
2. Step 2: Convert to fraction form
   2,897,086.64/3,998,714.46 = 1,979,687.12/x
3. Step 3: Cross multiply
   2,897,086.64x = 3,998,714.46 × 1,979,687.12
4. Step 4: Simplify right side
   2,897,086.64x = 7,916,203,513,019.76
5. Step 5: Solve for x
   x = 7,916,203,513,019.76/2,897,086.64
6. Step 6: Final answer
   x = 2,732,470.41