Finding the Fourth Proportional to 805,841.32, 1,112,087.46 and 443,293

Step by Step Solution

1. Step 1: Write the proportion equation
   805,841.32 : 1,112,087.46 = 443,293 : x
2. Step 2: Convert to fraction form
   805,841.32/1,112,087.46 = 443,293/x
3. Step 3: Cross multiply
   805,841.32x = 1,112,087.46 × 443,293
4. Step 4: Simplify right side
   805,841.32x = 492,980,586,405.78
5. Step 5: Solve for x
   x = 492,980,586,405.78/805,841.32
6. Step 6: Final answer
   x = 611,758.88