Finding the Fourth Proportional to 583,667.94, 805,339.27 and 354,345.94

Step by Step Solution

1. Step 1: Write the proportion equation
   583,667.94 : 805,339.27 = 354,345.94 : x
2. Step 2: Convert to fraction form
   583,667.94/805,339.27 = 354,345.94/x
3. Step 3: Cross multiply
   583,667.94x = 805,339.27 × 354,345.94
4. Step 4: Simplify right side
   583,667.94x = 285,368,700,647.06
5. Step 5: Solve for x
   x = 285,368,700,647.06/583,667.94
6. Step 6: Final answer
   x = 488,923.03