Finding the Fourth Proportional to 2,415.30, 3,333.07 and 1,353.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.30 : 3,333.07 = 1,353.05 : x
2. Step 2: Convert to fraction form
   2,415.30/3,333.07 = 1,353.05/x
3. Step 3: Cross multiply
   2,415.30x = 3,333.07 × 1,353.05
4. Step 4: Simplify right side
   2,415.30x = 4,509,815.31
5. Step 5: Solve for x
   x = 4,509,815.31/2,415.30
6. Step 6: Final answer
   x = 1,867.19