Finding the Fourth Proportional to 2,339.15, 3,228.58 and 1,345.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.15 : 3,228.58 = 1,345.00 : x
2. Step 2: Convert to fraction form
   2,339.15/3,228.58 = 1,345.00/x
3. Step 3: Cross multiply
   2,339.15x = 3,228.58 × 1,345.00
4. Step 4: Simplify right side
   2,339.15x = 4,342,444.81
5. Step 5: Solve for x
   x = 4,342,444.81/2,339.15
6. Step 6: Final answer
   x = 1,856.42