Finding the Fourth Proportional to 1,932.60, 2,666.88 and 1,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.60 : 2,666.88 = 1,146.72 : x
2. Step 2: Convert to fraction form
   1,932.60/2,666.88 = 1,146.72/x
3. Step 3: Cross multiply
   1,932.60x = 2,666.88 × 1,146.72
4. Step 4: Simplify right side
   1,932.60x = 3,058,164.63
5. Step 5: Solve for x
   x = 3,058,164.63/1,932.60
6. Step 6: Final answer
   x = 1,582.41