Finding the Fourth Proportional to 3,609.15, 5,412.65 and 1,876.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,609.15 : 5,412.65 = 1,876.83 : x
2. Step 2: Convert to fraction form
   3,609.15/5,412.65 = 1,876.83/x
3. Step 3: Cross multiply
   3,609.15x = 5,412.65 × 1,876.83
4. Step 4: Simplify right side
   3,609.15x = 10,158,614.52
5. Step 5: Solve for x
   x = 10,158,614.52/3,609.15
6. Step 6: Final answer
   x = 2,814.68