Finding the Fourth Proportional to 1,510.96, 2,085.12 and 847.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.96 : 2,085.12 = 847.81 : x
2. Step 2: Convert to fraction form
   1,510.96/2,085.12 = 847.81/x
3. Step 3: Cross multiply
   1,510.96x = 2,085.12 × 847.81
4. Step 4: Simplify right side
   1,510.96x = 1,767,788.68
5. Step 5: Solve for x
   x = 1,767,788.68/1,510.96
6. Step 6: Final answer
   x = 1,169.98