Finding the Fourth Proportional to 901,443.39, 1,243,942.60 and 493,466.31

Step by Step Solution

1. Step 1: Write the proportion equation
   901,443.39 : 1,243,942.60 = 493,466.31 : x
2. Step 2: Convert to fraction form
   901,443.39/1,243,942.60 = 493,466.31/x
3. Step 3: Cross multiply
   901,443.39x = 1,243,942.60 × 493,466.31
4. Step 4: Simplify right side
   901,443.39x = 613,843,762,206.48
5. Step 5: Solve for x
   x = 613,843,762,206.48/901,443.39
6. Step 6: Final answer
   x = 680,956.53