Finding the Fourth Proportional to 2,045.81, 2,822.51 and 1,248.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.81 : 2,822.51 = 1,248.91 : x
2. Step 2: Convert to fraction form
   2,045.81/2,822.51 = 1,248.91/x
3. Step 3: Cross multiply
   2,045.81x = 2,822.51 × 1,248.91
4. Step 4: Simplify right side
   2,045.81x = 3,525,057.03
5. Step 5: Solve for x
   x = 3,525,057.03/2,045.81
6. Step 6: Final answer
   x = 1,723.06