Finding the Fourth Proportional to 1,027,061.08, 1,540,280.58 and 279,009.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027,061.08 : 1,540,280.58 = 279,009.88 : x
2. Step 2: Convert to fraction form
   1,027,061.08/1,540,280.58 = 279,009.88/x
3. Step 3: Cross multiply
   1,027,061.08x = 1,540,280.58 × 279,009.88
4. Step 4: Simplify right side
   1,027,061.08x = 429,753,499,792.13
5. Step 5: Solve for x
   x = 429,753,499,792.13/1,027,061.08
6. Step 6: Final answer
   x = 418,430.32