Finding the Fourth Proportional to 1,940.25, 2,676.10 and 1,310.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.25 : 2,676.10 = 1,310.47 : x
2. Step 2: Convert to fraction form
   1,940.25/2,676.10 = 1,310.47/x
3. Step 3: Cross multiply
   1,940.25x = 2,676.10 × 1,310.47
4. Step 4: Simplify right side
   1,940.25x = 3,506,948.77
5. Step 5: Solve for x
   x = 3,506,948.77/1,940.25
6. Step 6: Final answer
   x = 1,807.47