Finding the Fourth Proportional to 1,113.55, 1,536.89 and 671.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.55 : 1,536.89 = 671.52 : x
2. Step 2: Convert to fraction form
   1,113.55/1,536.89 = 671.52/x
3. Step 3: Cross multiply
   1,113.55x = 1,536.89 × 671.52
4. Step 4: Simplify right side
   1,113.55x = 1,032,052.37
5. Step 5: Solve for x
   x = 1,032,052.37/1,113.55
6. Step 6: Final answer
   x = 926.81