Finding the Fourth Proportional to 2,253.31, 3,373.81 and 1,521.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.31 : 3,373.81 = 1,521.43 : x
2. Step 2: Convert to fraction form
   2,253.31/3,373.81 = 1,521.43/x
3. Step 3: Cross multiply
   2,253.31x = 3,373.81 × 1,521.43
4. Step 4: Simplify right side
   2,253.31x = 5,133,003.51
5. Step 5: Solve for x
   x = 5,133,003.51/2,253.31
6. Step 6: Final answer
   x = 2,277.99