Finding the Fourth Proportional to 6,445.80, 9,665.82 and 1,827.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,445.80 : 9,665.82 = 1,827.72 : x
2. Step 2: Convert to fraction form
   6,445.80/9,665.82 = 1,827.72/x
3. Step 3: Cross multiply
   6,445.80x = 9,665.82 × 1,827.72
4. Step 4: Simplify right side
   6,445.80x = 17,666,412.53
5. Step 5: Solve for x
   x = 17,666,412.53/6,445.80
6. Step 6: Final answer
   x = 2,740.76