Finding the Fourth Proportional to 2,398.59, 3,307.50 and 1,611.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.59 : 3,307.50 = 1,611.27 : x
2. Step 2: Convert to fraction form
   2,398.59/3,307.50 = 1,611.27/x
3. Step 3: Cross multiply
   2,398.59x = 3,307.50 × 1,611.27
4. Step 4: Simplify right side
   2,398.59x = 5,329,275.53
5. Step 5: Solve for x
   x = 5,329,275.53/2,398.59
6. Step 6: Final answer
   x = 2,221.84