Finding the Fourth Proportional to 2,381.50, 3,572.72 and 1,149.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.50 : 3,572.72 = 1,149.76 : x
2. Step 2: Convert to fraction form
   2,381.50/3,572.72 = 1,149.76/x
3. Step 3: Cross multiply
   2,381.50x = 3,572.72 × 1,149.76
4. Step 4: Simplify right side
   2,381.50x = 4,107,746.93
5. Step 5: Solve for x
   x = 4,107,746.93/2,381.50
6. Step 6: Final answer
   x = 1,724.86