Finding the Fourth Proportional to 702,878.72, 1,054,308.76 and 170,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   702,878.72 : 1,054,308.76 = 170,404.56 : x
2. Step 2: Convert to fraction form
   702,878.72/1,054,308.76 = 170,404.56/x
3. Step 3: Cross multiply
   702,878.72x = 1,054,308.76 × 170,404.56
4. Step 4: Simplify right side
   702,878.72x = 179,659,019,925.93
5. Step 5: Solve for x
   x = 179,659,019,925.93/702,878.72
6. Step 6: Final answer
   x = 255,604.58