Finding the Fourth Proportional to 1,149.53, 1,575.31 and 1,038.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,149.53 : 1,575.31 = 1,038.82 : x
2. Step 2: Convert to fraction form
   1,149.53/1,575.31 = 1,038.82/x
3. Step 3: Cross multiply
   1,149.53x = 1,575.31 × 1,038.82
4. Step 4: Simplify right side
   1,149.53x = 1,636,454.55
5. Step 5: Solve for x
   x = 1,636,454.55/1,149.53
6. Step 6: Final answer
   x = 1,423.58