Finding the Fourth Proportional to 2,545.54, 3,818.34 and 901.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.54 : 3,818.34 = 901.72 : x
2. Step 2: Convert to fraction form
   2,545.54/3,818.34 = 901.72/x
3. Step 3: Cross multiply
   2,545.54x = 3,818.34 × 901.72
4. Step 4: Simplify right side
   2,545.54x = 3,443,073.54
5. Step 5: Solve for x
   x = 3,443,073.54/2,545.54
6. Step 6: Final answer
   x = 1,352.59