Finding the Fourth Proportional to 1,453.50, 2,177.46 and 1,143.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.50 : 2,177.46 = 1,143.72 : x
2. Step 2: Convert to fraction form
   1,453.50/2,177.46 = 1,143.72/x
3. Step 3: Cross multiply
   1,453.50x = 2,177.46 × 1,143.72
4. Step 4: Simplify right side
   1,453.50x = 2,490,404.55
5. Step 5: Solve for x
   x = 2,490,404.55/1,453.50
6. Step 6: Final answer
   x = 1,713.38