Finding the Fourth Proportional to 2,314.78, 3,194.57 and 1,320.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,314.78 : 3,194.57 = 1,320.08 : x
2. Step 2: Convert to fraction form
   2,314.78/3,194.57 = 1,320.08/x
3. Step 3: Cross multiply
   2,314.78x = 3,194.57 × 1,320.08
4. Step 4: Simplify right side
   2,314.78x = 4,217,094.30
5. Step 5: Solve for x
   x = 4,217,094.30/2,314.78
6. Step 6: Final answer
   x = 1,821.81