Finding the Fourth Proportional to 1,136.07, 1,700.15 and 697.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.07 : 1,700.15 = 697.12 : x
2. Step 2: Convert to fraction form
   1,136.07/1,700.15 = 697.12/x
3. Step 3: Cross multiply
   1,136.07x = 1,700.15 × 697.12
4. Step 4: Simplify right side
   1,136.07x = 1,185,200.83
5. Step 5: Solve for x
   x = 1,185,200.83/1,136.07
6. Step 6: Final answer
   x = 1,043.25