Finding the Fourth Proportional to 2,907.10, 4,011.83 and 1,580.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,907.10 : 4,011.83 = 1,580.83 : x
2. Step 2: Convert to fraction form
   2,907.10/4,011.83 = 1,580.83/x
3. Step 3: Cross multiply
   2,907.10x = 4,011.83 × 1,580.83
4. Step 4: Simplify right side
   2,907.10x = 6,342,013.31
5. Step 5: Solve for x
   x = 6,342,013.31/2,907.10
6. Step 6: Final answer
   x = 2,181.56