Finding the Fourth Proportional to 2,460,707.56, 3,691,039.20 and 777,811.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460,707.56 : 3,691,039.20 = 777,811.60 : x
2. Step 2: Convert to fraction form
   2,460,707.56/3,691,039.20 = 777,811.60/x
3. Step 3: Cross multiply
   2,460,707.56x = 3,691,039.20 × 777,811.60
4. Step 4: Simplify right side
   2,460,707.56x = 2,870,933,105,814.72
5. Step 5: Solve for x
   x = 2,870,933,105,814.72/2,460,707.56
6. Step 6: Final answer
   x = 1,166,710.40