Finding the Fourth Proportional to 1,411.62, 1,948.06 and 790.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.62 : 1,948.06 = 790.62 : x
2. Step 2: Convert to fraction form
   1,411.62/1,948.06 = 790.62/x
3. Step 3: Cross multiply
   1,411.62x = 1,948.06 × 790.62
4. Step 4: Simplify right side
   1,411.62x = 1,540,175.20
5. Step 5: Solve for x
   x = 1,540,175.20/1,411.62
6. Step 6: Final answer
   x = 1,091.07