Finding the Fourth Proportional to 2,253.89, 3,111.50 and 1,415.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.89 : 3,111.50 = 1,415.81 : x
2. Step 2: Convert to fraction form
   2,253.89/3,111.50 = 1,415.81/x
3. Step 3: Cross multiply
   2,253.89x = 3,111.50 × 1,415.81
4. Step 4: Simplify right side
   2,253.89x = 4,405,292.82
5. Step 5: Solve for x
   x = 4,405,292.82/2,253.89
6. Step 6: Final answer
   x = 1,954.53