Finding the Fourth Proportional to 2,124.57, 3,186.29 and 953.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.57 : 3,186.29 = 953.91 : x
2. Step 2: Convert to fraction form
   2,124.57/3,186.29 = 953.91/x
3. Step 3: Cross multiply
   2,124.57x = 3,186.29 × 953.91
4. Step 4: Simplify right side
   2,124.57x = 3,039,441.86
5. Step 5: Solve for x
   x = 3,039,441.86/2,124.57
6. Step 6: Final answer
   x = 1,430.62