Finding the Fourth Proportional to 1,108.95, 1,530.27 and 667.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.95 : 1,530.27 = 667.09 : x
2. Step 2: Convert to fraction form
   1,108.95/1,530.27 = 667.09/x
3. Step 3: Cross multiply
   1,108.95x = 1,530.27 × 667.09
4. Step 4: Simplify right side
   1,108.95x = 1,020,827.81
5. Step 5: Solve for x
   x = 1,020,827.81/1,108.95
6. Step 6: Final answer
   x = 920.54