Finding the Fourth Proportional to 2,871.37, 4,307.55 and 924.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.37 : 4,307.55 = 924.04 : x
2. Step 2: Convert to fraction form
   2,871.37/4,307.55 = 924.04/x
3. Step 3: Cross multiply
   2,871.37x = 4,307.55 × 924.04
4. Step 4: Simplify right side
   2,871.37x = 3,980,348.50
5. Step 5: Solve for x
   x = 3,980,348.50/2,871.37
6. Step 6: Final answer
   x = 1,386.22