Finding the Fourth Proportional to 1,510.84, 2,084.96 and 847.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.84 : 2,084.96 = 847.76 : x
2. Step 2: Convert to fraction form
   1,510.84/2,084.96 = 847.76/x
3. Step 3: Cross multiply
   1,510.84x = 2,084.96 × 847.76
4. Step 4: Simplify right side
   1,510.84x = 1,767,545.69
5. Step 5: Solve for x
   x = 1,767,545.69/1,510.84
6. Step 6: Final answer
   x = 1,169.91