Finding the Fourth Proportional to 3,411.63, 5,116.16 and 1,561.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.63 : 5,116.16 = 1,561.46 : x
2. Step 2: Convert to fraction form
   3,411.63/5,116.16 = 1,561.46/x
3. Step 3: Cross multiply
   3,411.63x = 5,116.16 × 1,561.46
4. Step 4: Simplify right side
   3,411.63x = 7,988,657.52
5. Step 5: Solve for x
   x = 7,988,657.52/3,411.63
6. Step 6: Final answer
   x = 2,341.60