Finding the Fourth Proportional to 2,779.21, 3,835.27 and 1,520.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,779.21 : 3,835.27 = 1,520.24 : x
2. Step 2: Convert to fraction form
   2,779.21/3,835.27 = 1,520.24/x
3. Step 3: Cross multiply
   2,779.21x = 3,835.27 × 1,520.24
4. Step 4: Simplify right side
   2,779.21x = 5,830,530.86
5. Step 5: Solve for x
   x = 5,830,530.86/2,779.21
6. Step 6: Final answer
   x = 2,097.91