Finding the Fourth Proportional to 2,151.55, 2,970.23 and 1,268.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.55 : 2,970.23 = 1,268.25 : x
2. Step 2: Convert to fraction form
   2,151.55/2,970.23 = 1,268.25/x
3. Step 3: Cross multiply
   2,151.55x = 2,970.23 × 1,268.25
4. Step 4: Simplify right side
   2,151.55x = 3,766,994.20
5. Step 5: Solve for x
   x = 3,766,994.20/2,151.55
6. Step 6: Final answer
   x = 1,750.83