Finding the Fourth Proportional to 1,613.31, 2,420.64 and 1,093.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.31 : 2,420.64 = 1,093.89 : x
2. Step 2: Convert to fraction form
   1,613.31/2,420.64 = 1,093.89/x
3. Step 3: Cross multiply
   1,613.31x = 2,420.64 × 1,093.89
4. Step 4: Simplify right side
   1,613.31x = 2,647,913.89
5. Step 5: Solve for x
   x = 2,647,913.89/1,613.31
6. Step 6: Final answer
   x = 1,641.29