Finding the Fourth Proportional to 2,151.10, 2,968.80 and 1,266.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.10 : 2,968.80 = 1,266.89 : x
2. Step 2: Convert to fraction form
   2,151.10/2,968.80 = 1,266.89/x
3. Step 3: Cross multiply
   2,151.10x = 2,968.80 × 1,266.89
4. Step 4: Simplify right side
   2,151.10x = 3,761,143.03
5. Step 5: Solve for x
   x = 3,761,143.03/2,151.10
6. Step 6: Final answer
   x = 1,748.48