Finding the Fourth Proportional to 1,112.41, 1,535.00 and 615.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.41 : 1,535.00 = 615.05 : x
2. Step 2: Convert to fraction form
   1,112.41/1,535.00 = 615.05/x
3. Step 3: Cross multiply
   1,112.41x = 1,535.00 × 615.05
4. Step 4: Simplify right side
   1,112.41x = 944,102.51
5. Step 5: Solve for x
   x = 944,102.51/1,112.41
6. Step 6: Final answer
   x = 848.70