Finding the Fourth Proportional to 1,931.76, 2,665.85 and 1,146.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.76 : 2,665.85 = 1,146.33 : x
2. Step 2: Convert to fraction form
   1,931.76/2,665.85 = 1,146.33/x
3. Step 3: Cross multiply
   1,931.76x = 2,665.85 × 1,146.33
4. Step 4: Simplify right side
   1,931.76x = 3,055,938.10
5. Step 5: Solve for x
   x = 3,055,938.10/1,931.76
6. Step 6: Final answer
   x = 1,581.95