Finding the Fourth Proportional to 1,070,058.86, 1,605,144.72 and 271,347.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,058.86 : 1,605,144.72 = 271,347.31 : x
2. Step 2: Convert to fraction form
   1,070,058.86/1,605,144.72 = 271,347.31/x
3. Step 3: Cross multiply
   1,070,058.86x = 1,605,144.72 × 271,347.31
4. Step 4: Simplify right side
   1,070,058.86x = 435,551,693,906.98
5. Step 5: Solve for x
   x = 435,551,693,906.98/1,070,058.86
6. Step 6: Final answer
   x = 407,035.27