Finding the Fourth Proportional to 2,644.89, 3,649.93 and 1,525.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.89 : 3,649.93 = 1,525.80 : x
2. Step 2: Convert to fraction form
   2,644.89/3,649.93 = 1,525.80/x
3. Step 3: Cross multiply
   2,644.89x = 3,649.93 × 1,525.80
4. Step 4: Simplify right side
   2,644.89x = 5,569,073.07
5. Step 5: Solve for x
   x = 5,569,073.07/2,644.89
6. Step 6: Final answer
   x = 2,105.60