Finding the Fourth Proportional to 2,419.07, 3,330.87 and 2,118.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.07 : 3,330.87 = 2,118.59 : x
2. Step 2: Convert to fraction form
   2,419.07/3,330.87 = 2,118.59/x
3. Step 3: Cross multiply
   2,419.07x = 3,330.87 × 2,118.59
4. Step 4: Simplify right side
   2,419.07x = 7,056,727.25
5. Step 5: Solve for x
   x = 7,056,727.25/2,419.07
6. Step 6: Final answer
   x = 2,917.12