Finding the Fourth Proportional to 1,838.09, 2,535.72 and 1,279.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,838.09 : 2,535.72 = 1,279.93 : x
2. Step 2: Convert to fraction form
   1,838.09/2,535.72 = 1,279.93/x
3. Step 3: Cross multiply
   1,838.09x = 2,535.72 × 1,279.93
4. Step 4: Simplify right side
   1,838.09x = 3,245,544.10
5. Step 5: Solve for x
   x = 3,245,544.10/1,838.09
6. Step 6: Final answer
   x = 1,765.72