Finding the Fourth Proportional to 2,914.89, 4,377.60 and 1,821.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,914.89 : 4,377.60 = 1,821.39 : x
2. Step 2: Convert to fraction form
   2,914.89/4,377.60 = 1,821.39/x
3. Step 3: Cross multiply
   2,914.89x = 4,377.60 × 1,821.39
4. Step 4: Simplify right side
   2,914.89x = 7,973,316.86
5. Step 5: Solve for x
   x = 7,973,316.86/2,914.89
6. Step 6: Final answer
   x = 2,735.37