Finding the Fourth Proportional to 1,061.50, 1,464.24 and 667.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.50 : 1,464.24 = 667.84 : x
2. Step 2: Convert to fraction form
   1,061.50/1,464.24 = 667.84/x
3. Step 3: Cross multiply
   1,061.50x = 1,464.24 × 667.84
4. Step 4: Simplify right side
   1,061.50x = 977,874.70
5. Step 5: Solve for x
   x = 977,874.70/1,061.50
6. Step 6: Final answer
   x = 921.22