Finding the Fourth Proportional to 1,641.98, 2,449.92 and 1,525.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.98 : 2,449.92 = 1,525.86 : x
2. Step 2: Convert to fraction form
   1,641.98/2,449.92 = 1,525.86/x
3. Step 3: Cross multiply
   1,641.98x = 2,449.92 × 1,525.86
4. Step 4: Simplify right side
   1,641.98x = 3,738,234.93
5. Step 5: Solve for x
   x = 3,738,234.93/1,641.98
6. Step 6: Final answer
   x = 2,276.66