Finding the Fourth Proportional to 2,308.34, 3,182.52 and 1,561.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.34 : 3,182.52 = 1,561.76 : x
2. Step 2: Convert to fraction form
   2,308.34/3,182.52 = 1,561.76/x
3. Step 3: Cross multiply
   2,308.34x = 3,182.52 × 1,561.76
4. Step 4: Simplify right side
   2,308.34x = 4,970,332.44
5. Step 5: Solve for x
   x = 4,970,332.44/2,308.34
6. Step 6: Final answer
   x = 2,153.21