Finding the Fourth Proportional to 1,807.76, 2,479.46 and 1,671.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.76 : 2,479.46 = 1,671.68 : x
2. Step 2: Convert to fraction form
   1,807.76/2,479.46 = 1,671.68/x
3. Step 3: Cross multiply
   1,807.76x = 2,479.46 × 1,671.68
4. Step 4: Simplify right side
   1,807.76x = 4,144,863.69
5. Step 5: Solve for x
   x = 4,144,863.69/1,807.76
6. Step 6: Final answer
   x = 2,292.82