Finding the Fourth Proportional to 697,152, 962,069.76 and 379,200

Step by Step Solution

1. Step 1: Write the proportion equation
   697,152 : 962,069.76 = 379,200 : x
2. Step 2: Convert to fraction form
   697,152/962,069.76 = 379,200/x
3. Step 3: Cross multiply
   697,152x = 962,069.76 × 379,200
4. Step 4: Simplify right side
   697,152x = 364,816,852,992
5. Step 5: Solve for x
   x = 364,816,852,992/697,152
6. Step 6: Final answer
   x = 523,296