Finding the Fourth Proportional to 2,405,804.56, 3,609,038.52 and 808,491.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405,804.56 : 3,609,038.52 = 808,491.40 : x
2. Step 2: Convert to fraction form
   2,405,804.56/3,609,038.52 = 808,491.40/x
3. Step 3: Cross multiply
   2,405,804.56x = 3,609,038.52 × 808,491.40
4. Step 4: Simplify right side
   2,405,804.56x = 2,917,876,605,688.73
5. Step 5: Solve for x
   x = 2,917,876,605,688.73/2,405,804.56
6. Step 6: Final answer
   x = 1,212,848.56