Finding the Fourth Proportional to 492,670.37, 737,566.17 and 445,394.72

Step by Step Solution

1. Step 1: Write the proportion equation
   492,670.37 : 737,566.17 = 445,394.72 : x
2. Step 2: Convert to fraction form
   492,670.37/737,566.17 = 445,394.72/x
3. Step 3: Cross multiply
   492,670.37x = 737,566.17 × 445,394.72
4. Step 4: Simplify right side
   492,670.37x = 328,508,074,080.79
5. Step 5: Solve for x
   x = 328,508,074,080.79/492,670.37
6. Step 6: Final answer
   x = 666,790.81