Finding the Fourth Proportional to 3,409.83, 5,123.25 and 2,177.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,409.83 : 5,123.25 = 2,177.82 : x
2. Step 2: Convert to fraction form
   3,409.83/5,123.25 = 2,177.82/x
3. Step 3: Cross multiply
   3,409.83x = 5,123.25 × 2,177.82
4. Step 4: Simplify right side
   3,409.83x = 11,157,516.32
5. Step 5: Solve for x
   x = 11,157,516.32/3,409.83
6. Step 6: Final answer
   x = 3,272.16