Finding the Fourth Proportional to 2,545.56, 3,818.61 and 901.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545.56 : 3,818.61 = 901.98 : x
2. Step 2: Convert to fraction form
   2,545.56/3,818.61 = 901.98/x
3. Step 3: Cross multiply
   2,545.56x = 3,818.61 × 901.98
4. Step 4: Simplify right side
   2,545.56x = 3,444,309.85
5. Step 5: Solve for x
   x = 3,444,309.85/2,545.56
6. Step 6: Final answer
   x = 1,353.07