Finding the Fourth Proportional to 1,284,159,978.72, 1,772,149,840.56 and 697,449,114.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,159,978.72 : 1,772,149,840.56 = 697,449,114.72 : x
2. Step 2: Convert to fraction form
   1,284,159,978.72/1,772,149,840.56 = 697,449,114.72/x
3. Step 3: Cross multiply
   1,284,159,978.72x = 1,772,149,840.56 × 697,449,114.72
4. Step 4: Simplify right side
   1,284,159,978.72x = 1,235,984,337,449,761,280
5. Step 5: Solve for x
   x = 1,235,984,337,449,761,280/1,284,159,978.72
6. Step 6: Final answer
   x = 962,484,704.34