Finding the Fourth Proportional to 1,117.50, 1,541.38 and 674.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.50 : 1,541.38 = 674.63 : x
2. Step 2: Convert to fraction form
   1,117.50/1,541.38 = 674.63/x
3. Step 3: Cross multiply
   1,117.50x = 1,541.38 × 674.63
4. Step 4: Simplify right side
   1,117.50x = 1,039,858.84
5. Step 5: Solve for x
   x = 1,039,858.84/1,117.50
6. Step 6: Final answer
   x = 930.53