Finding the Fourth Proportional to 2,042.31, 3,061.85 and 887.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.31 : 3,061.85 = 887.25 : x
2. Step 2: Convert to fraction form
   2,042.31/3,061.85 = 887.25/x
3. Step 3: Cross multiply
   2,042.31x = 3,061.85 × 887.25
4. Step 4: Simplify right side
   2,042.31x = 2,716,621.98
5. Step 5: Solve for x
   x = 2,716,621.98/2,042.31
6. Step 6: Final answer
   x = 1,330.17