Finding the Fourth Proportional to 945,577.89, 1,304,900.55 and 515,867.04

Step by Step Solution

1. Step 1: Write the proportion equation
   945,577.89 : 1,304,900.55 = 515,867.04 : x
2. Step 2: Convert to fraction form
   945,577.89/1,304,900.55 = 515,867.04/x
3. Step 3: Cross multiply
   945,577.89x = 1,304,900.55 × 515,867.04
4. Step 4: Simplify right side
   945,577.89x = 673,155,184,222.87
5. Step 5: Solve for x
   x = 673,155,184,222.87/945,577.89
6. Step 6: Final answer
   x = 711,898.19