Finding the Fourth Proportional to 1,407.43, 1,941.15 and 910.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.43 : 1,941.15 = 910.18 : x
2. Step 2: Convert to fraction form
   1,407.43/1,941.15 = 910.18/x
3. Step 3: Cross multiply
   1,407.43x = 1,941.15 × 910.18
4. Step 4: Simplify right side
   1,407.43x = 1,766,795.91
5. Step 5: Solve for x
   x = 1,766,795.91/1,407.43
6. Step 6: Final answer
   x = 1,255.33