Finding the Fourth Proportional to 2,820.32, 3,890.73 and 1,825.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.32 : 3,890.73 = 1,825.92 : x
2. Step 2: Convert to fraction form
   2,820.32/3,890.73 = 1,825.92/x
3. Step 3: Cross multiply
   2,820.32x = 3,890.73 × 1,825.92
4. Step 4: Simplify right side
   2,820.32x = 7,104,161.72
5. Step 5: Solve for x
   x = 7,104,161.72/2,820.32
6. Step 6: Final answer
   x = 2,518.92