Finding the Fourth Proportional to 1,786,977.99, 2,680,443.72 and 439,152.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786,977.99 : 2,680,443.72 = 439,152.48 : x
2. Step 2: Convert to fraction form
   1,786,977.99/2,680,443.72 = 439,152.48/x
3. Step 3: Cross multiply
   1,786,977.99x = 2,680,443.72 × 439,152.48
4. Step 4: Simplify right side
   1,786,977.99x = 1,177,123,507,138.43
5. Step 5: Solve for x
   x = 1,177,123,507,138.43/1,786,977.99
6. Step 6: Final answer
   x = 658,723.00