Finding the Fourth Proportional to 896,155.16, 1,236,682.72 and 488,274

Step by Step Solution

1. Step 1: Write the proportion equation
   896,155.16 : 1,236,682.72 = 488,274 : x
2. Step 2: Convert to fraction form
   896,155.16/1,236,682.72 = 488,274/x
3. Step 3: Cross multiply
   896,155.16x = 1,236,682.72 × 488,274
4. Step 4: Simplify right side
   896,155.16x = 603,840,018,425.28
5. Step 5: Solve for x
   x = 603,840,018,425.28/896,155.16
6. Step 6: Final answer
   x = 673,811.91