Finding the Fourth Proportional to 6,213.67, 9,317.31 and 1,830.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,213.67 : 9,317.31 = 1,830.55 : x
2. Step 2: Convert to fraction form
   6,213.67/9,317.31 = 1,830.55/x
3. Step 3: Cross multiply
   6,213.67x = 9,317.31 × 1,830.55
4. Step 4: Simplify right side
   6,213.67x = 17,055,801.82
5. Step 5: Solve for x
   x = 17,055,801.82/6,213.67
6. Step 6: Final answer
   x = 2,744.88