Finding the Fourth Proportional to 1,788.77, 2,684.82 and 1,267.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.77 : 2,684.82 = 1,267.28 : x
2. Step 2: Convert to fraction form
   1,788.77/2,684.82 = 1,267.28/x
3. Step 3: Cross multiply
   1,788.77x = 2,684.82 × 1,267.28
4. Step 4: Simplify right side
   1,788.77x = 3,402,405.27
5. Step 5: Solve for x
   x = 3,402,405.27/1,788.77
6. Step 6: Final answer
   x = 1,902.10