Finding the Fourth Proportional to 1,611.31, 2,417.00 and 1,339.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.31 : 2,417.00 = 1,339.30 : x
2. Step 2: Convert to fraction form
   1,611.31/2,417.00 = 1,339.30/x
3. Step 3: Cross multiply
   1,611.31x = 2,417.00 × 1,339.30
4. Step 4: Simplify right side
   1,611.31x = 3,237,085.41
5. Step 5: Solve for x
   x = 3,237,085.41/1,611.31
6. Step 6: Final answer
   x = 2,008.98