Finding the Fourth Proportional to 2,315.73, 3,470.45 and 1,274.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.73 : 3,470.45 = 1,274.18 : x
2. Step 2: Convert to fraction form
   2,315.73/3,470.45 = 1,274.18/x
3. Step 3: Cross multiply
   2,315.73x = 3,470.45 × 1,274.18
4. Step 4: Simplify right side
   2,315.73x = 4,421,963.81
5. Step 5: Solve for x
   x = 4,421,963.81/2,315.73
6. Step 6: Final answer
   x = 1,909.53