Finding the Fourth Proportional to 2,543.34, 3,510.18 and 1,549.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.34 : 3,510.18 = 1,549.20 : x
2. Step 2: Convert to fraction form
   2,543.34/3,510.18 = 1,549.20/x
3. Step 3: Cross multiply
   2,543.34x = 3,510.18 × 1,549.20
4. Step 4: Simplify right side
   2,543.34x = 5,437,970.86
5. Step 5: Solve for x
   x = 5,437,970.86/2,543.34
6. Step 6: Final answer
   x = 2,138.12