Finding the Fourth Proportional to 762,443.01, 1,052,297.60 and 423,020.61

Step by Step Solution

1. Step 1: Write the proportion equation
   762,443.01 : 1,052,297.60 = 423,020.61 : x
2. Step 2: Convert to fraction form
   762,443.01/1,052,297.60 = 423,020.61/x
3. Step 3: Cross multiply
   762,443.01x = 1,052,297.60 × 423,020.61
4. Step 4: Simplify right side
   762,443.01x = 445,143,570,538.43
5. Step 5: Solve for x
   x = 445,143,570,538.43/762,443.01
6. Step 6: Final answer
   x = 583,838.48