Finding the Fourth Proportional to 2,407.89, 3,322.86 and 1,345.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.89 : 3,322.86 = 1,345.59 : x
2. Step 2: Convert to fraction form
   2,407.89/3,322.86 = 1,345.59/x
3. Step 3: Cross multiply
   2,407.89x = 3,322.86 × 1,345.59
4. Step 4: Simplify right side
   2,407.89x = 4,471,207.19
5. Step 5: Solve for x
   x = 4,471,207.19/2,407.89
6. Step 6: Final answer
   x = 1,856.90