Finding the Fourth Proportional to 858,667.88, 1,184,902.20 and 476,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   858,667.88 : 1,184,902.20 = 476,664.50 : x
2. Step 2: Convert to fraction form
   858,667.88/1,184,902.20 = 476,664.50/x
3. Step 3: Cross multiply
   858,667.88x = 1,184,902.20 × 476,664.50
4. Step 4: Simplify right side
   858,667.88x = 564,800,814,711.90
5. Step 5: Solve for x
   x = 564,800,814,711.90/858,667.88
6. Step 6: Final answer
   x = 657,763.99