Finding the Fourth Proportional to 2,456.52, 3,392.42 and 1,561.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.52 : 3,392.42 = 1,561.93 : x
2. Step 2: Convert to fraction form
   2,456.52/3,392.42 = 1,561.93/x
3. Step 3: Cross multiply
   2,456.52x = 3,392.42 × 1,561.93
4. Step 4: Simplify right side
   2,456.52x = 5,298,697.80
5. Step 5: Solve for x
   x = 5,298,697.80/2,456.52
6. Step 6: Final answer
   x = 2,156.99