Finding the Fourth Proportional to 805,336.70, 1,111,365.33 and 442,766.72

Step by Step Solution

1. Step 1: Write the proportion equation
   805,336.70 : 1,111,365.33 = 442,766.72 : x
2. Step 2: Convert to fraction form
   805,336.70/1,111,365.33 = 442,766.72/x
3. Step 3: Cross multiply
   805,336.70x = 1,111,365.33 × 442,766.72
4. Step 4: Simplify right side
   805,336.70x = 492,075,581,885.82
5. Step 5: Solve for x
   x = 492,075,581,885.82/805,336.70
6. Step 6: Final answer
   x = 611,018.45