Finding the Fourth Proportional to 2,564.96, 3,539.72 and 1,445.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564.96 : 3,539.72 = 1,445.99 : x
2. Step 2: Convert to fraction form
   2,564.96/3,539.72 = 1,445.99/x
3. Step 3: Cross multiply
   2,564.96x = 3,539.72 × 1,445.99
4. Step 4: Simplify right side
   2,564.96x = 5,118,412.19
5. Step 5: Solve for x
   x = 5,118,412.19/2,564.96
6. Step 6: Final answer
   x = 1,995.52