Finding the Fourth Proportional to 826,736.29, 1,140,807.72 and 464,200

Step by Step Solution

1. Step 1: Write the proportion equation
   826,736.29 : 1,140,807.72 = 464,200 : x
2. Step 2: Convert to fraction form
   826,736.29/1,140,807.72 = 464,200/x
3. Step 3: Cross multiply
   826,736.29x = 1,140,807.72 × 464,200
4. Step 4: Simplify right side
   826,736.29x = 529,562,943,624
5. Step 5: Solve for x
   x = 529,562,943,624/826,736.29
6. Step 6: Final answer
   x = 640,546.39