Finding the Fourth Proportional to 2,488.74, 3,733.61 and 845.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.74 : 3,733.61 = 845.22 : x
2. Step 2: Convert to fraction form
   2,488.74/3,733.61 = 845.22/x
3. Step 3: Cross multiply
   2,488.74x = 3,733.61 × 845.22
4. Step 4: Simplify right side
   2,488.74x = 3,155,717.62
5. Step 5: Solve for x
   x = 3,155,717.62/2,488.74
6. Step 6: Final answer
   x = 1,268.00