Finding the Fourth Proportional to 2,656.39, 3,665.41 and 1,521.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.39 : 3,665.41 = 1,521.88 : x
2. Step 2: Convert to fraction form
   2,656.39/3,665.41 = 1,521.88/x
3. Step 3: Cross multiply
   2,656.39x = 3,665.41 × 1,521.88
4. Step 4: Simplify right side
   2,656.39x = 5,578,314.17
5. Step 5: Solve for x
   x = 5,578,314.17/2,656.39
6. Step 6: Final answer
   x = 2,099.96