Finding the Fourth Proportional to 1,116,058.91, 1,673,686.94 and 386,383.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116,058.91 : 1,673,686.94 = 386,383.98 : x
2. Step 2: Convert to fraction form
   1,116,058.91/1,673,686.94 = 386,383.98/x
3. Step 3: Cross multiply
   1,116,058.91x = 1,673,686.94 × 386,383.98
4. Step 4: Simplify right side
   1,116,058.91x = 646,685,819,219.30
5. Step 5: Solve for x
   x = 646,685,819,219.30/1,116,058.91
6. Step 6: Final answer
   x = 579,437.00