Finding the Fourth Proportional to 2,342.61, 3,513.69 and 611.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.61 : 3,513.69 = 611.24 : x
2. Step 2: Convert to fraction form
   2,342.61/3,513.69 = 611.24/x
3. Step 3: Cross multiply
   2,342.61x = 3,513.69 × 611.24
4. Step 4: Simplify right side
   2,342.61x = 2,147,690.31
5. Step 5: Solve for x
   x = 2,147,690.31/2,342.61
6. Step 6: Final answer
   x = 916.79