Finding the Fourth Proportional to 840,404.34, 1,159,854.78 and 467,904.78

Step by Step Solution

1. Step 1: Write the proportion equation
   840,404.34 : 1,159,854.78 = 467,904.78 : x
2. Step 2: Convert to fraction form
   840,404.34/1,159,854.78 = 467,904.78/x
3. Step 3: Cross multiply
   840,404.34x = 1,159,854.78 × 467,904.78
4. Step 4: Simplify right side
   840,404.34x = 542,701,595,667.85
5. Step 5: Solve for x
   x = 542,701,595,667.85/840,404.34
6. Step 6: Final answer
   x = 645,762.49