Finding the Fourth Proportional to 1,243,662.72, 1,716,101.96 and 784,604.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,662.72 : 1,716,101.96 = 784,604.16 : x
2. Step 2: Convert to fraction form
   1,243,662.72/1,716,101.96 = 784,604.16/x
3. Step 3: Cross multiply
   1,243,662.72x = 1,716,101.96 × 784,604.16
4. Step 4: Simplify right side
   1,243,662.72x = 1,346,460,736,800.15
5. Step 5: Solve for x
   x = 1,346,460,736,800.15/1,243,662.72
6. Step 6: Final answer
   x = 1,082,657.47