Finding the Fourth Proportional to 1,227.39, 1,693.86 and 703.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.39 : 1,693.86 = 703.42 : x
2. Step 2: Convert to fraction form
   1,227.39/1,693.86 = 703.42/x
3. Step 3: Cross multiply
   1,227.39x = 1,693.86 × 703.42
4. Step 4: Simplify right side
   1,227.39x = 1,191,495.00
5. Step 5: Solve for x
   x = 1,191,495.00/1,227.39
6. Step 6: Final answer
   x = 970.76