Finding the Fourth Proportional to 1,406.86, 1,941.06 and 847.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406.86 : 1,941.06 = 847.05 : x
2. Step 2: Convert to fraction form
   1,406.86/1,941.06 = 847.05/x
3. Step 3: Cross multiply
   1,406.86x = 1,941.06 × 847.05
4. Step 4: Simplify right side
   1,406.86x = 1,644,174.87
5. Step 5: Solve for x
   x = 1,644,174.87/1,406.86
6. Step 6: Final answer
   x = 1,168.69