Finding the Fourth Proportional to 2,152.30, 2,970.81 and 1,268.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.30 : 2,970.81 = 1,268.39 : x
2. Step 2: Convert to fraction form
   2,152.30/2,970.81 = 1,268.39/x
3. Step 3: Cross multiply
   2,152.30x = 2,970.81 × 1,268.39
4. Step 4: Simplify right side
   2,152.30x = 3,768,138.27
5. Step 5: Solve for x
   x = 3,768,138.27/2,152.30
6. Step 6: Final answer
   x = 1,750.75