Finding the Fourth Proportional to 1,407.62, 1,941.12 and 910.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.62 : 1,941.12 = 910.52 : x
2. Step 2: Convert to fraction form
   1,407.62/1,941.12 = 910.52/x
3. Step 3: Cross multiply
   1,407.62x = 1,941.12 × 910.52
4. Step 4: Simplify right side
   1,407.62x = 1,767,428.58
5. Step 5: Solve for x
   x = 1,767,428.58/1,407.62
6. Step 6: Final answer
   x = 1,255.61