Finding the Fourth Proportional to 2,641.30, 3,643.80 and 1,521.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.30 : 3,643.80 = 1,521.83 : x
2. Step 2: Convert to fraction form
   2,641.30/3,643.80 = 1,521.83/x
3. Step 3: Cross multiply
   2,641.30x = 3,643.80 × 1,521.83
4. Step 4: Simplify right side
   2,641.30x = 5,545,244.15
5. Step 5: Solve for x
   x = 5,545,244.15/2,641.30
6. Step 6: Final answer
   x = 2,099.44