Finding the Fourth Proportional to 1,041.89, 1,438.32 and 649.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.89 : 1,438.32 = 649.04 : x
2. Step 2: Convert to fraction form
   1,041.89/1,438.32 = 649.04/x
3. Step 3: Cross multiply
   1,041.89x = 1,438.32 × 649.04
4. Step 4: Simplify right side
   1,041.89x = 933,520.02
5. Step 5: Solve for x
   x = 933,520.02/1,041.89
6. Step 6: Final answer
   x = 895.99