Finding the Fourth Proportional to 1,091.02, 1,505.82 and 698.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.02 : 1,505.82 = 698.08 : x
2. Step 2: Convert to fraction form
   1,091.02/1,505.82 = 698.08/x
3. Step 3: Cross multiply
   1,091.02x = 1,505.82 × 698.08
4. Step 4: Simplify right side
   1,091.02x = 1,051,182.83
5. Step 5: Solve for x
   x = 1,051,182.83/1,091.02
6. Step 6: Final answer
   x = 963.49