Finding the Fourth Proportional to 1,070,062.85, 1,605,150.72 and 271,351.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,062.85 : 1,605,150.72 = 271,351.31 : x
2. Step 2: Convert to fraction form
   1,070,062.85/1,605,150.72 = 271,351.31/x
3. Step 3: Cross multiply
   1,070,062.85x = 1,605,150.72 × 271,351.31
4. Step 4: Simplify right side
   1,070,062.85x = 435,559,742,593.69
5. Step 5: Solve for x
   x = 435,559,742,593.69/1,070,062.85
6. Step 6: Final answer
   x = 407,041.27