Finding the Fourth Proportional to 2,415.50, 3,333.39 and 1,367.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.50 : 3,333.39 = 1,367.57 : x
2. Step 2: Convert to fraction form
   2,415.50/3,333.39 = 1,367.57/x
3. Step 3: Cross multiply
   2,415.50x = 3,333.39 × 1,367.57
4. Step 4: Simplify right side
   2,415.50x = 4,558,644.16
5. Step 5: Solve for x
   x = 4,558,644.16/2,415.50
6. Step 6: Final answer
   x = 1,887.25