Finding the Fourth Proportional to 1,344.86, 1,856.72 and 847.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.86 : 1,856.72 = 847.94 : x
2. Step 2: Convert to fraction form
   1,344.86/1,856.72 = 847.94/x
3. Step 3: Cross multiply
   1,344.86x = 1,856.72 × 847.94
4. Step 4: Simplify right side
   1,344.86x = 1,574,387.16
5. Step 5: Solve for x
   x = 1,574,387.16/1,344.86
6. Step 6: Final answer
   x = 1,170.67