Finding the Fourth Proportional to 2,569.58, 3,545.85 and 1,435.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.58 : 3,545.85 = 1,435.24 : x
2. Step 2: Convert to fraction form
   2,569.58/3,545.85 = 1,435.24/x
3. Step 3: Cross multiply
   2,569.58x = 3,545.85 × 1,435.24
4. Step 4: Simplify right side
   2,569.58x = 5,089,128.02
5. Step 5: Solve for x
   x = 5,089,128.02/2,569.58
6. Step 6: Final answer
   x = 1,980.53