Finding the Fourth Proportional to 2,354.47, 3,528.77 and 2,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.47 : 3,528.77 = 2,061.28 : x
2. Step 2: Convert to fraction form
   2,354.47/3,528.77 = 2,061.28/x
3. Step 3: Cross multiply
   2,354.47x = 3,528.77 × 2,061.28
4. Step 4: Simplify right side
   2,354.47x = 7,273,777.13
5. Step 5: Solve for x
   x = 7,273,777.13/2,354.47
6. Step 6: Final answer
   x = 3,089.35