Finding the Fourth Proportional to 805,019.57, 1,110,880 and 442,443.69

Step by Step Solution

1. Step 1: Write the proportion equation
   805,019.57 : 1,110,880 = 442,443.69 : x
2. Step 2: Convert to fraction form
   805,019.57/1,110,880 = 442,443.69/x
3. Step 3: Cross multiply
   805,019.57x = 1,110,880 × 442,443.69
4. Step 4: Simplify right side
   805,019.57x = 491,501,846,347.20
5. Step 5: Solve for x
   x = 491,501,846,347.20/805,019.57
6. Step 6: Final answer
   x = 610,546.46