Finding the Fourth Proportional to 2,568.86, 3,545.40 and 1,573.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.86 : 3,545.40 = 1,573.98 : x
2. Step 2: Convert to fraction form
   2,568.86/3,545.40 = 1,573.98/x
3. Step 3: Cross multiply
   2,568.86x = 3,545.40 × 1,573.98
4. Step 4: Simplify right side
   2,568.86x = 5,580,388.69
5. Step 5: Solve for x
   x = 5,580,388.69/2,568.86
6. Step 6: Final answer
   x = 2,172.32