Finding the Fourth Proportional to 1,165.59, 1,746.90 and 618.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,165.59 : 1,746.90 = 618.03 : x
2. Step 2: Convert to fraction form
   1,165.59/1,746.90 = 618.03/x
3. Step 3: Cross multiply
   1,165.59x = 1,746.90 × 618.03
4. Step 4: Simplify right side
   1,165.59x = 1,079,636.61
5. Step 5: Solve for x
   x = 1,079,636.61/1,165.59
6. Step 6: Final answer
   x = 926.26