Finding the Fourth Proportional to 2,191.32, 3,023.64 and 1,259.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.32 : 3,023.64 = 1,259.64 : x
2. Step 2: Convert to fraction form
   2,191.32/3,023.64 = 1,259.64/x
3. Step 3: Cross multiply
   2,191.32x = 3,023.64 × 1,259.64
4. Step 4: Simplify right side
   2,191.32x = 3,808,697.89
5. Step 5: Solve for x
   x = 3,808,697.89/2,191.32
6. Step 6: Final answer
   x = 1,738.08