Finding the Fourth Proportional to 1,788.86, 2,682.89 and 556.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.86 : 2,682.89 = 556.25 : x
2. Step 2: Convert to fraction form
   1,788.86/2,682.89 = 556.25/x
3. Step 3: Cross multiply
   1,788.86x = 2,682.89 × 556.25
4. Step 4: Simplify right side
   1,788.86x = 1,492,354.78
5. Step 5: Solve for x
   x = 1,492,354.78/1,788.86
6. Step 6: Final answer
   x = 834.25