Finding the Fourth Proportional to 1,659.88, 2,498.47 and 1,409.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.88 : 2,498.47 = 1,409.32 : x
2. Step 2: Convert to fraction form
   1,659.88/2,498.47 = 1,409.32/x
3. Step 3: Cross multiply
   1,659.88x = 2,498.47 × 1,409.32
4. Step 4: Simplify right side
   1,659.88x = 3,521,143.74
5. Step 5: Solve for x
   x = 3,521,143.74/1,659.88
6. Step 6: Final answer
   x = 2,121.32