Finding the Fourth Proportional to 2,776.88, 3,832.20 and 1,535.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.88 : 3,832.20 = 1,535.12 : x
2. Step 2: Convert to fraction form
   2,776.88/3,832.20 = 1,535.12/x
3. Step 3: Cross multiply
   2,776.88x = 3,832.20 × 1,535.12
4. Step 4: Simplify right side
   2,776.88x = 5,882,886.86
5. Step 5: Solve for x
   x = 5,882,886.86/2,776.88
6. Step 6: Final answer
   x = 2,118.52