Finding the Fourth Proportional to 2,435.27, 3,360.71 and 1,387.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,435.27 : 3,360.71 = 1,387.31 : x
2. Step 2: Convert to fraction form
   2,435.27/3,360.71 = 1,387.31/x
3. Step 3: Cross multiply
   2,435.27x = 3,360.71 × 1,387.31
4. Step 4: Simplify right side
   2,435.27x = 4,662,338.05
5. Step 5: Solve for x
   x = 4,662,338.05/2,435.27
6. Step 6: Final answer
   x = 1,914.51