Finding the Fourth Proportional to 1,782.89, 2,460.31 and 986.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.89 : 2,460.31 = 986.16 : x
2. Step 2: Convert to fraction form
   1,782.89/2,460.31 = 986.16/x
3. Step 3: Cross multiply
   1,782.89x = 2,460.31 × 986.16
4. Step 4: Simplify right side
   1,782.89x = 2,426,257.78
5. Step 5: Solve for x
   x = 2,426,257.78/1,782.89
6. Step 6: Final answer
   x = 1,360.86