Finding the Fourth Proportional to 2,391.60, 3,300.05 and 1,343.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.60 : 3,300.05 = 1,343.46 : x
2. Step 2: Convert to fraction form
   2,391.60/3,300.05 = 1,343.46/x
3. Step 3: Cross multiply
   2,391.60x = 3,300.05 × 1,343.46
4. Step 4: Simplify right side
   2,391.60x = 4,433,478.46
5. Step 5: Solve for x
   x = 4,433,478.46/2,391.60
6. Step 6: Final answer
   x = 1,853.77