Finding the Fourth Proportional to 1,078,670.51, 1,617,585.17 and 404,384.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,670.51 : 1,617,585.17 = 404,384.29 : x
2. Step 2: Convert to fraction form
   1,078,670.51/1,617,585.17 = 404,384.29/x
3. Step 3: Cross multiply
   1,078,670.51x = 1,617,585.17 × 404,384.29
4. Step 4: Simplify right side
   1,078,670.51x = 654,126,030,484.98
5. Step 5: Solve for x
   x = 654,126,030,484.98/1,078,670.51
6. Step 6: Final answer
   x = 606,418.76