Finding the Fourth Proportional to 3,997,920.31, 5,517,260.58 and 2,187,084.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997,920.31 : 5,517,260.58 = 2,187,084.31 : x
2. Step 2: Convert to fraction form
   3,997,920.31/5,517,260.58 = 2,187,084.31/x
3. Step 3: Cross multiply
   3,997,920.31x = 5,517,260.58 × 2,187,084.31
4. Step 4: Simplify right side
   3,997,920.31x = 12,066,714,048,699.50
5. Step 5: Solve for x
   x = 12,066,714,048,699.50/3,997,920.31
6. Step 6: Final answer
   x = 3,018,247.77