Finding the Fourth Proportional to 1,224,067.34, 1,688,719.69 and 739,791.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,067.34 : 1,688,719.69 = 739,791.74 : x
2. Step 2: Convert to fraction form
   1,224,067.34/1,688,719.69 = 739,791.74/x
3. Step 3: Cross multiply
   1,224,067.34x = 1,688,719.69 × 739,791.74
4. Step 4: Simplify right side
   1,224,067.34x = 1,249,300,867,544.28
5. Step 5: Solve for x
   x = 1,249,300,867,544.28/1,224,067.34
6. Step 6: Final answer
   x = 1,020,614.49