Finding the Fourth Proportional to 2,726.76, 4,086.53 and 993.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.76 : 4,086.53 = 993.72 : x
2. Step 2: Convert to fraction form
   2,726.76/4,086.53 = 993.72/x
3. Step 3: Cross multiply
   2,726.76x = 4,086.53 × 993.72
4. Step 4: Simplify right side
   2,726.76x = 4,060,866.59
5. Step 5: Solve for x
   x = 4,060,866.59/2,726.76
6. Step 6: Final answer
   x = 1,489.26