Finding the Fourth Proportional to 1,598.52, 2,395.72 and 720.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,598.52 : 2,395.72 = 720.99 : x
2. Step 2: Convert to fraction form
   1,598.52/2,395.72 = 720.99/x
3. Step 3: Cross multiply
   1,598.52x = 2,395.72 × 720.99
4. Step 4: Simplify right side
   1,598.52x = 1,727,290.16
5. Step 5: Solve for x
   x = 1,727,290.16/1,598.52
6. Step 6: Final answer
   x = 1,080.56