Finding the Fourth Proportional to 1,766.89, 2,438.15 and 970.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.89 : 2,438.15 = 970.18 : x
2. Step 2: Convert to fraction form
   1,766.89/2,438.15 = 970.18/x
3. Step 3: Cross multiply
   1,766.89x = 2,438.15 × 970.18
4. Step 4: Simplify right side
   1,766.89x = 2,365,433.42
5. Step 5: Solve for x
   x = 2,365,433.42/1,766.89
6. Step 6: Final answer
   x = 1,338.75