Finding the Fourth Proportional to 2,191.83, 3,025.40 and 1,352.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.83 : 3,025.40 = 1,352.79 : x
2. Step 2: Convert to fraction form
   2,191.83/3,025.40 = 1,352.79/x
3. Step 3: Cross multiply
   2,191.83x = 3,025.40 × 1,352.79
4. Step 4: Simplify right side
   2,191.83x = 4,092,724.10
5. Step 5: Solve for x
   x = 4,092,724.10/2,191.83
6. Step 6: Final answer
   x = 1,867.26