Finding the Fourth Proportional to 1,061.05, 1,464.01 and 667.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.05 : 1,464.01 = 667.93 : x
2. Step 2: Convert to fraction form
   1,061.05/1,464.01 = 667.93/x
3. Step 3: Cross multiply
   1,061.05x = 1,464.01 × 667.93
4. Step 4: Simplify right side
   1,061.05x = 977,856.20
5. Step 5: Solve for x
   x = 977,856.20/1,061.05
6. Step 6: Final answer
   x = 921.59