Finding the Fourth Proportional to 789,976.64, 1,184,684.72 and 284,401.88

Step by Step Solution

1. Step 1: Write the proportion equation
   789,976.64 : 1,184,684.72 = 284,401.88 : x
2. Step 2: Convert to fraction form
   789,976.64/1,184,684.72 = 284,401.88/x
3. Step 3: Cross multiply
   789,976.64x = 1,184,684.72 × 284,401.88
4. Step 4: Simplify right side
   789,976.64x = 336,926,555,651.85
5. Step 5: Solve for x
   x = 336,926,555,651.85/789,976.64
6. Step 6: Final answer
   x = 426,501.92