Finding the Fourth Proportional to 805,321.14, 1,111,314.81 and 442,742.37

Step by Step Solution

1. Step 1: Write the proportion equation
   805,321.14 : 1,111,314.81 = 442,742.37 : x
2. Step 2: Convert to fraction form
   805,321.14/1,111,314.81 = 442,742.37/x
3. Step 3: Cross multiply
   805,321.14x = 1,111,314.81 × 442,742.37
4. Step 4: Simplify right side
   805,321.14x = 492,026,152,795.50
5. Step 5: Solve for x
   x = 492,026,152,795.50/805,321.14
6. Step 6: Final answer
   x = 610,968.88