Finding the Fourth Proportional to 2,566.43, 3,543.78 and 1,623.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.43 : 3,543.78 = 1,623.75 : x
2. Step 2: Convert to fraction form
   2,566.43/3,543.78 = 1,623.75/x
3. Step 3: Cross multiply
   2,566.43x = 3,543.78 × 1,623.75
4. Step 4: Simplify right side
   2,566.43x = 5,754,191.87
5. Step 5: Solve for x
   x = 5,754,191.87/2,566.43
6. Step 6: Final answer
   x = 2,242.10