Finding the Fourth Proportional to 1,510.22, 2,082.16 and 978.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.22 : 2,082.16 = 978.16 : x
2. Step 2: Convert to fraction form
   1,510.22/2,082.16 = 978.16/x
3. Step 3: Cross multiply
   1,510.22x = 2,082.16 × 978.16
4. Step 4: Simplify right side
   1,510.22x = 2,036,685.63
5. Step 5: Solve for x
   x = 2,036,685.63/1,510.22
6. Step 6: Final answer
   x = 1,348.60