Finding the Fourth Proportional to 1,158.48, 1,736.52 and 869.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.48 : 1,736.52 = 869.04 : x
2. Step 2: Convert to fraction form
   1,158.48/1,736.52 = 869.04/x
3. Step 3: Cross multiply
   1,158.48x = 1,736.52 × 869.04
4. Step 4: Simplify right side
   1,158.48x = 1,509,105.34
5. Step 5: Solve for x
   x = 1,509,105.34/1,158.48
6. Step 6: Final answer
   x = 1,302.66