Finding the Fourth Proportional to 2,779.61, 3,836.01 and 1,520.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,779.61 : 3,836.01 = 1,520.61 : x
2. Step 2: Convert to fraction form
   2,779.61/3,836.01 = 1,520.61/x
3. Step 3: Cross multiply
   2,779.61x = 3,836.01 × 1,520.61
4. Step 4: Simplify right side
   2,779.61x = 5,833,075.17
5. Step 5: Solve for x
   x = 5,833,075.17/2,779.61
6. Step 6: Final answer
   x = 2,098.53