Finding the Fourth Proportional to 2,238.88, 3,086.40 and 1,573.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.88 : 3,086.40 = 1,573.76 : x
2. Step 2: Convert to fraction form
   2,238.88/3,086.40 = 1,573.76/x
3. Step 3: Cross multiply
   2,238.88x = 3,086.40 × 1,573.76
4. Step 4: Simplify right side
   2,238.88x = 4,857,252.86
5. Step 5: Solve for x
   x = 4,857,252.86/2,238.88
6. Step 6: Final answer
   x = 2,169.50