Finding the Fourth Proportional to 705,192, 973,164.96 and 403,386

Step by Step Solution

1. Step 1: Write the proportion equation
   705,192 : 973,164.96 = 403,386 : x
2. Step 2: Convert to fraction form
   705,192/973,164.96 = 403,386/x
3. Step 3: Cross multiply
   705,192x = 973,164.96 × 403,386
4. Step 4: Simplify right side
   705,192x = 392,561,120,554.56
5. Step 5: Solve for x
   x = 392,561,120,554.56/705,192
6. Step 6: Final answer
   x = 556,672.68