Finding the Fourth Proportional to 1,166.84, 1,748.22 and 617.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166.84 : 1,748.22 = 617.72 : x
2. Step 2: Convert to fraction form
   1,166.84/1,748.22 = 617.72/x
3. Step 3: Cross multiply
   1,166.84x = 1,748.22 × 617.72
4. Step 4: Simplify right side
   1,166.84x = 1,079,910.46
5. Step 5: Solve for x
   x = 1,079,910.46/1,166.84
6. Step 6: Final answer
   x = 925.50