Finding the Fourth Proportional to 2,415.86, 3,333.69 and 1,353.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.86 : 3,333.69 = 1,353.54 : x
2. Step 2: Convert to fraction form
   2,415.86/3,333.69 = 1,353.54/x
3. Step 3: Cross multiply
   2,415.86x = 3,333.69 × 1,353.54
4. Step 4: Simplify right side
   2,415.86x = 4,512,282.76
5. Step 5: Solve for x
   x = 4,512,282.76/2,415.86
6. Step 6: Final answer
   x = 1,867.78