Finding the Fourth Proportional to 2,372.79, 3,274.31 and 1,310.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,372.79 : 3,274.31 = 1,310.56 : x
2. Step 2: Convert to fraction form
   2,372.79/3,274.31 = 1,310.56/x
3. Step 3: Cross multiply
   2,372.79x = 3,274.31 × 1,310.56
4. Step 4: Simplify right side
   2,372.79x = 4,291,179.71
5. Step 5: Solve for x
   x = 4,291,179.71/2,372.79
6. Step 6: Final answer
   x = 1,808.50