Finding the Fourth Proportional to 1,410,144, 1,945,998.72 and 774,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410,144 : 1,945,998.72 = 774,240 : x
2. Step 2: Convert to fraction form
   1,410,144/1,945,998.72 = 774,240/x
3. Step 3: Cross multiply
   1,410,144x = 1,945,998.72 × 774,240
4. Step 4: Simplify right side
   1,410,144x = 1,506,670,048,972.80
5. Step 5: Solve for x
   x = 1,506,670,048,972.80/1,410,144
6. Step 6: Final answer
   x = 1,068,451.20