Finding the Fourth Proportional to 1,114.34, 1,537.90 and 672.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.34 : 1,537.90 = 672.61 : x
2. Step 2: Convert to fraction form
   1,114.34/1,537.90 = 672.61/x
3. Step 3: Cross multiply
   1,114.34x = 1,537.90 × 672.61
4. Step 4: Simplify right side
   1,114.34x = 1,034,401.39
5. Step 5: Solve for x
   x = 1,034,401.39/1,114.34
6. Step 6: Final answer
   x = 928.26