Finding the Fourth Proportional to 1,227.42, 1,693.80 and 703.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.42 : 1,693.80 = 703.42 : x
2. Step 2: Convert to fraction form
   1,227.42/1,693.80 = 703.42/x
3. Step 3: Cross multiply
   1,227.42x = 1,693.80 × 703.42
4. Step 4: Simplify right side
   1,227.42x = 1,191,448.56
5. Step 5: Solve for x
   x = 1,191,448.56/1,227.42
6. Step 6: Final answer
   x = 970.69