Finding the Fourth Proportional to 1,284,254.72, 1,773,462.83 and 961,404.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,254.72 : 1,773,462.83 = 961,404.31 : x
2. Step 2: Convert to fraction form
   1,284,254.72/1,773,462.83 = 961,404.31/x
3. Step 3: Cross multiply
   1,284,254.72x = 1,773,462.83 × 961,404.31
4. Step 4: Simplify right side
   1,284,254.72x = 1,705,014,808,386.80
5. Step 5: Solve for x
   x = 1,705,014,808,386.80/1,284,254.72
6. Step 6: Final answer
   x = 1,327,629.78