Finding the Fourth Proportional to 2,314.17, 3,472.74 and 853.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,314.17 : 3,472.74 = 853.34 : x
2. Step 2: Convert to fraction form
   2,314.17/3,472.74 = 853.34/x
3. Step 3: Cross multiply
   2,314.17x = 3,472.74 × 853.34
4. Step 4: Simplify right side
   2,314.17x = 2,963,410.59
5. Step 5: Solve for x
   x = 2,963,410.59/2,314.17
6. Step 6: Final answer
   x = 1,280.55