Finding the Fourth Proportional to 3,693.68, 5,535.89 and 1,845.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,693.68 : 5,535.89 = 1,845.31 : x
2. Step 2: Convert to fraction form
   3,693.68/5,535.89 = 1,845.31/x
3. Step 3: Cross multiply
   3,693.68x = 5,535.89 × 1,845.31
4. Step 4: Simplify right side
   3,693.68x = 10,215,423.95
5. Step 5: Solve for x
   x = 10,215,423.95/3,693.68
6. Step 6: Final answer
   x = 2,765.65