Finding the Fourth Proportional to 2,253.60, 3,109.86 and 1,415.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.60 : 3,109.86 = 1,415.16 : x
2. Step 2: Convert to fraction form
   2,253.60/3,109.86 = 1,415.16/x
3. Step 3: Cross multiply
   2,253.60x = 3,109.86 × 1,415.16
4. Step 4: Simplify right side
   2,253.60x = 4,400,949.48
5. Step 5: Solve for x
   x = 4,400,949.48/2,253.60
6. Step 6: Final answer
   x = 1,952.85