Finding the Fourth Proportional to 1,774.87, 2,447.72 and 1,111.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.87 : 2,447.72 = 1,111.78 : x
2. Step 2: Convert to fraction form
   1,774.87/2,447.72 = 1,111.78/x
3. Step 3: Cross multiply
   1,774.87x = 2,447.72 × 1,111.78
4. Step 4: Simplify right side
   1,774.87x = 2,721,308.34
5. Step 5: Solve for x
   x = 2,721,308.34/1,774.87
6. Step 6: Final answer
   x = 1,533.25