Finding the Fourth Proportional to 2,870.07, 3,960.37 and 1,610.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.07 : 3,960.37 = 1,610.87 : x
2. Step 2: Convert to fraction form
   2,870.07/3,960.37 = 1,610.87/x
3. Step 3: Cross multiply
   2,870.07x = 3,960.37 × 1,610.87
4. Step 4: Simplify right side
   2,870.07x = 6,379,641.22
5. Step 5: Solve for x
   x = 6,379,641.22/2,870.07
6. Step 6: Final answer
   x = 2,222.82