Finding the Fourth Proportional to 826,068.50, 1,139,994.18 and 463,519.18

Step by Step Solution

1. Step 1: Write the proportion equation
   826,068.50 : 1,139,994.18 = 463,519.18 : x
2. Step 2: Convert to fraction form
   826,068.50/1,139,994.18 = 463,519.18/x
3. Step 3: Cross multiply
   826,068.50x = 1,139,994.18 × 463,519.18
4. Step 4: Simplify right side
   826,068.50x = 528,409,167,518.37
5. Step 5: Solve for x
   x = 528,409,167,518.37/826,068.50
6. Step 6: Final answer
   x = 639,667.49