Finding the Fourth Proportional to 2,434.96, 3,360.42 and 1,387.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.96 : 3,360.42 = 1,387.09 : x
2. Step 2: Convert to fraction form
   2,434.96/3,360.42 = 1,387.09/x
3. Step 3: Cross multiply
   2,434.96x = 3,360.42 × 1,387.09
4. Step 4: Simplify right side
   2,434.96x = 4,661,204.98
5. Step 5: Solve for x
   x = 4,661,204.98/2,434.96
6. Step 6: Final answer
   x = 1,914.28