Finding the Fourth Proportional to 1,399.67, 2,098.86 and 1,008.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.67 : 2,098.86 = 1,008.03 : x
2. Step 2: Convert to fraction form
   1,399.67/2,098.86 = 1,008.03/x
3. Step 3: Cross multiply
   1,399.67x = 2,098.86 × 1,008.03
4. Step 4: Simplify right side
   1,399.67x = 2,115,713.85
5. Step 5: Solve for x
   x = 2,115,713.85/1,399.67
6. Step 6: Final answer
   x = 1,511.58