Finding the Fourth Proportional to 1,407.95, 1,941.89 and 848.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.95 : 1,941.89 = 848.21 : x
2. Step 2: Convert to fraction form
   1,407.95/1,941.89 = 848.21/x
3. Step 3: Cross multiply
   1,407.95x = 1,941.89 × 848.21
4. Step 4: Simplify right side
   1,407.95x = 1,647,116.57
5. Step 5: Solve for x
   x = 1,647,116.57/1,407.95
6. Step 6: Final answer
   x = 1,169.87