Finding the Fourth Proportional to 1,034.82, 1,427.98 and 615.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.82 : 1,427.98 = 615.15 : x
2. Step 2: Convert to fraction form
   1,034.82/1,427.98 = 615.15/x
3. Step 3: Cross multiply
   1,034.82x = 1,427.98 × 615.15
4. Step 4: Simplify right side
   1,034.82x = 878,421.90
5. Step 5: Solve for x
   x = 878,421.90/1,034.82
6. Step 6: Final answer
   x = 848.86