Finding the Fourth Proportional to 941,930.88, 1,299,870.72 and 512,215.68

Step by Step Solution

1. Step 1: Write the proportion equation
   941,930.88 : 1,299,870.72 = 512,215.68 : x
2. Step 2: Convert to fraction form
   941,930.88/1,299,870.72 = 512,215.68/x
3. Step 3: Cross multiply
   941,930.88x = 1,299,870.72 × 512,215.68
4. Step 4: Simplify right side
   941,930.88x = 665,814,164,756.89
5. Step 5: Solve for x
   x = 665,814,164,756.89/941,930.88
6. Step 6: Final answer
   x = 706,860.96