Finding the Fourth Proportional to 2,614.31, 3,607.74 and 1,435.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.31 : 3,607.74 = 1,435.37 : x
2. Step 2: Convert to fraction form
   2,614.31/3,607.74 = 1,435.37/x
3. Step 3: Cross multiply
   2,614.31x = 3,607.74 × 1,435.37
4. Step 4: Simplify right side
   2,614.31x = 5,178,423.73
5. Step 5: Solve for x
   x = 5,178,423.73/2,614.31
6. Step 6: Final answer
   x = 1,980.80