Finding the Fourth Proportional to 3,997,919.31, 5,517,259.20 and 2,187,083.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997,919.31 : 5,517,259.20 = 2,187,083.31 : x
2. Step 2: Convert to fraction form
   3,997,919.31/5,517,259.20 = 2,187,083.31/x
3. Step 3: Cross multiply
   3,997,919.31x = 5,517,259.20 × 2,187,083.31
4. Step 4: Simplify right side
   3,997,919.31x = 12,066,705,513,263.95
5. Step 5: Solve for x
   x = 12,066,705,513,263.95/3,997,919.31
6. Step 6: Final answer
   x = 3,018,246.39