Finding the Fourth Proportional to 1,117.47, 1,541.34 and 674.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.47 : 1,541.34 = 674.61 : x
2. Step 2: Convert to fraction form
   1,117.47/1,541.34 = 674.61/x
3. Step 3: Cross multiply
   1,117.47x = 1,541.34 × 674.61
4. Step 4: Simplify right side
   1,117.47x = 1,039,803.38
5. Step 5: Solve for x
   x = 1,039,803.38/1,117.47
6. Step 6: Final answer
   x = 930.50