Finding the Fourth Proportional to 1,061,800.48, 1,592,936.88 and 387,880.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,800.48 : 1,592,936.88 = 387,880.48 : x
2. Step 2: Convert to fraction form
   1,061,800.48/1,592,936.88 = 387,880.48/x
3. Step 3: Cross multiply
   1,061,800.48x = 1,592,936.88 × 387,880.48
4. Step 4: Simplify right side
   1,061,800.48x = 617,869,121,624.10
5. Step 5: Solve for x
   x = 617,869,121,624.10/1,061,800.48
6. Step 6: Final answer
   x = 581,906.99