Finding the Fourth Proportional to 1,555.30, 2,146.37 and 847.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.30 : 2,146.37 = 847.17 : x
2. Step 2: Convert to fraction form
   1,555.30/2,146.37 = 847.17/x
3. Step 3: Cross multiply
   1,555.30x = 2,146.37 × 847.17
4. Step 4: Simplify right side
   1,555.30x = 1,818,340.27
5. Step 5: Solve for x
   x = 1,818,340.27/1,555.30
6. Step 6: Final answer
   x = 1,169.13