Finding the Fourth Proportional to 805,357.32, 1,111,393.61 and 442,787.37

Step by Step Solution

1. Step 1: Write the proportion equation
   805,357.32 : 1,111,393.61 = 442,787.37 : x
2. Step 2: Convert to fraction form
   805,357.32/1,111,393.61 = 442,787.37/x
3. Step 3: Cross multiply
   805,357.32x = 1,111,393.61 × 442,787.37
4. Step 4: Simplify right side
   805,357.32x = 492,111,053,606.71
5. Step 5: Solve for x
   x = 492,111,053,606.71/805,357.32
6. Step 6: Final answer
   x = 611,046.85