Finding the Fourth Proportional to 1,196,141.31, 1,794,391.18 and 386,255.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196,141.31 : 1,794,391.18 = 386,255.11 : x
2. Step 2: Convert to fraction form
   1,196,141.31/1,794,391.18 = 386,255.11/x
3. Step 3: Cross multiply
   1,196,141.31x = 1,794,391.18 × 386,255.11
4. Step 4: Simplify right side
   1,196,141.31x = 693,092,760,682.65
5. Step 5: Solve for x
   x = 693,092,760,682.65/1,196,141.31
6. Step 6: Final answer
   x = 579,440.54