Finding the Fourth Proportional to 2,783.31, 4,175.01 and 1,322.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.31 : 4,175.01 = 1,322.61 : x
2. Step 2: Convert to fraction form
   2,783.31/4,175.01 = 1,322.61/x
3. Step 3: Cross multiply
   2,783.31x = 4,175.01 × 1,322.61
4. Step 4: Simplify right side
   2,783.31x = 5,521,909.98
5. Step 5: Solve for x
   x = 5,521,909.98/2,783.31
6. Step 6: Final answer
   x = 1,983.94