Finding the Fourth Proportional to 1,507.25, 2,080.41 and 983.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.25 : 2,080.41 = 983.99 : x
2. Step 2: Convert to fraction form
   1,507.25/2,080.41 = 983.99/x
3. Step 3: Cross multiply
   1,507.25x = 2,080.41 × 983.99
4. Step 4: Simplify right side
   1,507.25x = 2,047,102.64
5. Step 5: Solve for x
   x = 2,047,102.64/1,507.25
6. Step 6: Final answer
   x = 1,358.17