Finding the Fourth Proportional to 3,543.80, 4,890.42 and 2,051.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,543.80 : 4,890.42 = 2,051.72 : x
2. Step 2: Convert to fraction form
   3,543.80/4,890.42 = 2,051.72/x
3. Step 3: Cross multiply
   3,543.80x = 4,890.42 × 2,051.72
4. Step 4: Simplify right side
   3,543.80x = 10,033,772.52
5. Step 5: Solve for x
   x = 10,033,772.52/3,543.80
6. Step 6: Final answer
   x = 2,831.36