Finding the Fourth Proportional to 1,098.09, 1,515.38 and 700.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.09 : 1,515.38 = 700.25 : x
2. Step 2: Convert to fraction form
   1,098.09/1,515.38 = 700.25/x
3. Step 3: Cross multiply
   1,098.09x = 1,515.38 × 700.25
4. Step 4: Simplify right side
   1,098.09x = 1,061,133.77
5. Step 5: Solve for x
   x = 1,061,133.77/1,098.09
6. Step 6: Final answer
   x = 966.34