Finding the Fourth Proportional to 1,070,059.86, 1,605,146.22 and 271,348.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,059.86 : 1,605,146.22 = 271,348.31 : x
2. Step 2: Convert to fraction form
   1,070,059.86/1,605,146.22 = 271,348.31/x
3. Step 3: Cross multiply
   1,070,059.86x = 1,605,146.22 × 271,348.31
4. Step 4: Simplify right side
   1,070,059.86x = 435,553,714,099.89
5. Step 5: Solve for x
   x = 435,553,714,099.89/1,070,059.86
6. Step 6: Final answer
   x = 407,036.77