Finding the Fourth Proportional to 705,864, 974,223.54 and 404,058

Step by Step Solution

1. Step 1: Write the proportion equation
   705,864 : 974,223.54 = 404,058 : x
2. Step 2: Convert to fraction form
   705,864/974,223.54 = 404,058/x
3. Step 3: Cross multiply
   705,864x = 974,223.54 × 404,058
4. Step 4: Simplify right side
   705,864x = 393,642,815,125.32
5. Step 5: Solve for x
   x = 393,642,815,125.32/705,864
6. Step 6: Final answer
   x = 557,675.15