Finding the Fourth Proportional to 2,598.81, 3,899.30 and 1,445.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.81 : 3,899.30 = 1,445.37 : x
2. Step 2: Convert to fraction form
   2,598.81/3,899.30 = 1,445.37/x
3. Step 3: Cross multiply
   2,598.81x = 3,899.30 × 1,445.37
4. Step 4: Simplify right side
   2,598.81x = 5,635,924.01
5. Step 5: Solve for x
   x = 5,635,924.01/2,598.81
6. Step 6: Final answer
   x = 2,168.66