Finding the Fourth Proportional to 2,870.35, 3,960.02 and 1,807.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.35 : 3,960.02 = 1,807.83 : x
2. Step 2: Convert to fraction form
   2,870.35/3,960.02 = 1,807.83/x
3. Step 3: Cross multiply
   2,870.35x = 3,960.02 × 1,807.83
4. Step 4: Simplify right side
   2,870.35x = 7,159,047.48
5. Step 5: Solve for x
   x = 7,159,047.48/2,870.35
6. Step 6: Final answer
   x = 2,494.14