Finding the Fourth Proportional to 1,612.32, 2,417.82 and 516.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.32 : 2,417.82 = 516.38 : x
2. Step 2: Convert to fraction form
   1,612.32/2,417.82 = 516.38/x
3. Step 3: Cross multiply
   1,612.32x = 2,417.82 × 516.38
4. Step 4: Simplify right side
   1,612.32x = 1,248,513.89
5. Step 5: Solve for x
   x = 1,248,513.89/1,612.32
6. Step 6: Final answer
   x = 774.36