Finding the Fourth Proportional to 2,307.25, 3,182.91 and 1,561.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.25 : 3,182.91 = 1,561.47 : x
2. Step 2: Convert to fraction form
   2,307.25/3,182.91 = 1,561.47/x
3. Step 3: Cross multiply
   2,307.25x = 3,182.91 × 1,561.47
4. Step 4: Simplify right side
   2,307.25x = 4,970,018.48
5. Step 5: Solve for x
   x = 4,970,018.48/2,307.25
6. Step 6: Final answer
   x = 2,154.09