Finding the Fourth Proportional to 2,435.05, 3,360.41 and 1,387.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,435.05 : 3,360.41 = 1,387.09 : x
2. Step 2: Convert to fraction form
   2,435.05/3,360.41 = 1,387.09/x
3. Step 3: Cross multiply
   2,435.05x = 3,360.41 × 1,387.09
4. Step 4: Simplify right side
   2,435.05x = 4,661,184.17
5. Step 5: Solve for x
   x = 4,661,184.17/2,435.05
6. Step 6: Final answer
   x = 1,914.20