Finding the Fourth Proportional to 443,222.58, 615,776.42 and 437,908.17

Step by Step Solution

1. Step 1: Write the proportion equation
   443,222.58 : 615,776.42 = 437,908.17 : x
2. Step 2: Convert to fraction form
   443,222.58/615,776.42 = 437,908.17/x
3. Step 3: Cross multiply
   443,222.58x = 615,776.42 × 437,908.17
4. Step 4: Simplify right side
   443,222.58x = 269,653,523,021.81
5. Step 5: Solve for x
   x = 269,653,523,021.81/443,222.58
6. Step 6: Final answer
   x = 608,393.02