Finding the Fourth Proportional to 2,564.60, 3,539.10 and 1,445.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564.60 : 3,539.10 = 1,445.52 : x
2. Step 2: Convert to fraction form
   2,564.60/3,539.10 = 1,445.52/x
3. Step 3: Cross multiply
   2,564.60x = 3,539.10 × 1,445.52
4. Step 4: Simplify right side
   2,564.60x = 5,115,839.83
5. Step 5: Solve for x
   x = 5,115,839.83/2,564.60
6. Step 6: Final answer
   x = 1,994.79