Finding the Fourth Proportional to 2,543.42, 3,477.88 and 2,543.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.42 : 3,477.88 = 2,543.42 : x
2. Step 2: Convert to fraction form
   2,543.42/3,477.88 = 2,543.42/x
3. Step 3: Cross multiply
   2,543.42x = 3,477.88 × 2,543.42
4. Step 4: Simplify right side
   2,543.42x = 8,845,721.42
5. Step 5: Solve for x
   x = 8,845,721.42/2,543.42
6. Step 6: Final answer
   x = 3,477.88