Finding the Fourth Proportional to 2,155,756.56, 3,233,083.08 and 639,084.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,756.56 : 3,233,083.08 = 639,084.83 : x
2. Step 2: Convert to fraction form
   2,155,756.56/3,233,083.08 = 639,084.83/x
3. Step 3: Cross multiply
   2,155,756.56x = 3,233,083.08 × 639,084.83
4. Step 4: Simplify right side
   2,155,756.56x = 2,066,214,334,392.26
5. Step 5: Solve for x
   x = 2,066,214,334,392.26/2,155,756.56
6. Step 6: Final answer
   x = 958,463.67