Finding the Fourth Proportional to 2,148.87, 3,222.80 and 1,570.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.87 : 3,222.80 = 1,570.69 : x
2. Step 2: Convert to fraction form
   2,148.87/3,222.80 = 1,570.69/x
3. Step 3: Cross multiply
   2,148.87x = 3,222.80 × 1,570.69
4. Step 4: Simplify right side
   2,148.87x = 5,062,003.82
5. Step 5: Solve for x
   x = 5,062,003.82/2,148.87
6. Step 6: Final answer
   x = 2,355.66