Finding the Fourth Proportional to 1,800.74, 2,699.22 and 826.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800.74 : 2,699.22 = 826.04 : x
2. Step 2: Convert to fraction form
   1,800.74/2,699.22 = 826.04/x
3. Step 3: Cross multiply
   1,800.74x = 2,699.22 × 826.04
4. Step 4: Simplify right side
   1,800.74x = 2,229,663.69
5. Step 5: Solve for x
   x = 2,229,663.69/1,800.74
6. Step 6: Final answer
   x = 1,238.19