Finding the Fourth Proportional to 1,659.41, 2,290.10 and 1,098.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.41 : 2,290.10 = 1,098.91 : x
2. Step 2: Convert to fraction form
   1,659.41/2,290.10 = 1,098.91/x
3. Step 3: Cross multiply
   1,659.41x = 2,290.10 × 1,098.91
4. Step 4: Simplify right side
   1,659.41x = 2,516,596.85
5. Step 5: Solve for x
   x = 2,516,596.85/1,659.41
6. Step 6: Final answer
   x = 1,516.56