Finding the Fourth Proportional to 1,517,061.31, 2,275,679.40 and 570,440.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517,061.31 : 2,275,679.40 = 570,440.23 : x
2. Step 2: Convert to fraction form
   1,517,061.31/2,275,679.40 = 570,440.23/x
3. Step 3: Cross multiply
   1,517,061.31x = 2,275,679.40 × 570,440.23
4. Step 4: Simplify right side
   1,517,061.31x = 1,298,139,080,342.26
5. Step 5: Solve for x
   x = 1,298,139,080,342.26/1,517,061.31
6. Step 6: Final answer
   x = 855,693.22