Finding the Fourth Proportional to 1,175.89, 1,630.15 and 1,113.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175.89 : 1,630.15 = 1,113.47 : x
2. Step 2: Convert to fraction form
   1,175.89/1,630.15 = 1,113.47/x
3. Step 3: Cross multiply
   1,175.89x = 1,630.15 × 1,113.47
4. Step 4: Simplify right side
   1,175.89x = 1,815,109.40
5. Step 5: Solve for x
   x = 1,815,109.40/1,175.89
6. Step 6: Final answer
   x = 1,543.61