Finding the Fourth Proportional to 697,764.89, 963,019.69 and 425,990.34

Step by Step Solution

1. Step 1: Write the proportion equation
   697,764.89 : 963,019.69 = 425,990.34 : x
2. Step 2: Convert to fraction form
   697,764.89/963,019.69 = 425,990.34/x
3. Step 3: Cross multiply
   697,764.89x = 963,019.69 × 425,990.34
4. Step 4: Simplify right side
   697,764.89x = 410,237,084,104.82
5. Step 5: Solve for x
   x = 410,237,084,104.82/697,764.89
6. Step 6: Final answer
   x = 587,930.24