Finding the Fourth Proportional to 806,076.63, 1,112,402.99 and 443,501.54

Step by Step Solution

1. Step 1: Write the proportion equation
   806,076.63 : 1,112,402.99 = 443,501.54 : x
2. Step 2: Convert to fraction form
   806,076.63/1,112,402.99 = 443,501.54/x
3. Step 3: Cross multiply
   806,076.63x = 1,112,402.99 × 443,501.54
4. Step 4: Simplify right side
   806,076.63x = 493,352,443,055.37
5. Step 5: Solve for x
   x = 493,352,443,055.37/806,076.63
6. Step 6: Final answer
   x = 612,041.62