Finding the Fourth Proportional to 2,839,938.18, 3,919,109.31 and 1,821,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,839,938.18 : 3,919,109.31 = 1,821,340.50 : x
2. Step 2: Convert to fraction form
   2,839,938.18/3,919,109.31 = 1,821,340.50/x
3. Step 3: Cross multiply
   2,839,938.18x = 3,919,109.31 × 1,821,340.50
4. Step 4: Simplify right side
   2,839,938.18x = 7,138,032,510,230.06
5. Step 5: Solve for x
   x = 7,138,032,510,230.06/2,839,938.18
6. Step 6: Final answer
   x = 2,513,446.44