Finding the Fourth Proportional to 2,407.79, 3,322.49 and 1,345.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.79 : 3,322.49 = 1,345.61 : x
2. Step 2: Convert to fraction form
   2,407.79/3,322.49 = 1,345.61/x
3. Step 3: Cross multiply
   2,407.79x = 3,322.49 × 1,345.61
4. Step 4: Simplify right side
   2,407.79x = 4,470,777.35
5. Step 5: Solve for x
   x = 4,470,777.35/2,407.79
6. Step 6: Final answer
   x = 1,856.80