Finding the Fourth Proportional to 2,095.57, 2,891.90 and 1,310.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.57 : 2,891.90 = 1,310.07 : x
2. Step 2: Convert to fraction form
   2,095.57/2,891.90 = 1,310.07/x
3. Step 3: Cross multiply
   2,095.57x = 2,891.90 × 1,310.07
4. Step 4: Simplify right side
   2,095.57x = 3,788,591.43
5. Step 5: Solve for x
   x = 3,788,591.43/2,095.57
6. Step 6: Final answer
   x = 1,807.90