Finding the Fourth Proportional to 1,225.27, 1,690.86 and 701.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.27 : 1,690.86 = 701.32 : x
2. Step 2: Convert to fraction form
   1,225.27/1,690.86 = 701.32/x
3. Step 3: Cross multiply
   1,225.27x = 1,690.86 × 701.32
4. Step 4: Simplify right side
   1,225.27x = 1,185,833.94
5. Step 5: Solve for x
   x = 1,185,833.94/1,225.27
6. Step 6: Final answer
   x = 967.81