Finding the Fourth Proportional to 1,407.16, 1,941.12 and 847.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.16 : 1,941.12 = 847.29 : x
2. Step 2: Convert to fraction form
   1,407.16/1,941.12 = 847.29/x
3. Step 3: Cross multiply
   1,407.16x = 1,941.12 × 847.29
4. Step 4: Simplify right side
   1,407.16x = 1,644,687.33
5. Step 5: Solve for x
   x = 1,644,687.33/1,407.16
6. Step 6: Final answer
   x = 1,168.80