Finding the Fourth Proportional to 1,224.74, 1,690.72 and 700.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.74 : 1,690.72 = 700.67 : x
2. Step 2: Convert to fraction form
   1,224.74/1,690.72 = 700.67/x
3. Step 3: Cross multiply
   1,224.74x = 1,690.72 × 700.67
4. Step 4: Simplify right side
   1,224.74x = 1,184,636.78
5. Step 5: Solve for x
   x = 1,184,636.78/1,224.74
6. Step 6: Final answer
   x = 967.26