Finding the Fourth Proportional to 1,510.91, 2,085.02 and 847.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.91 : 2,085.02 = 847.76 : x
2. Step 2: Convert to fraction form
   1,510.91/2,085.02 = 847.76/x
3. Step 3: Cross multiply
   1,510.91x = 2,085.02 × 847.76
4. Step 4: Simplify right side
   1,510.91x = 1,767,596.56
5. Step 5: Solve for x
   x = 1,767,596.56/1,510.91
6. Step 6: Final answer
   x = 1,169.89