Finding the Fourth Proportional to 1,078,134.41, 1,616,727.98 and 403,742.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,134.41 : 1,616,727.98 = 403,742.72 : x
2. Step 2: Convert to fraction form
   1,078,134.41/1,616,727.98 = 403,742.72/x
3. Step 3: Cross multiply
   1,078,134.41x = 1,616,727.98 × 403,742.72
4. Step 4: Simplify right side
   1,078,134.41x = 652,742,150,126.59
5. Step 5: Solve for x
   x = 652,742,150,126.59/1,078,134.41
6. Step 6: Final answer
   x = 605,436.71