Finding the Fourth Proportional to 1,199,796.36, 1,655,490.40 and 709,842.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,199,796.36 : 1,655,490.40 = 709,842.72 : x
2. Step 2: Convert to fraction form
   1,199,796.36/1,655,490.40 = 709,842.72/x
3. Step 3: Cross multiply
   1,199,796.36x = 1,655,490.40 × 709,842.72
4. Step 4: Simplify right side
   1,199,796.36x = 1,175,137,808,469.89
5. Step 5: Solve for x
   x = 1,175,137,808,469.89/1,199,796.36
6. Step 6: Final answer
   x = 979,447.72