Finding the Fourth Proportional to 2,758.82, 4,136.40 and 1,113.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.82 : 4,136.40 = 1,113.30 : x
2. Step 2: Convert to fraction form
   2,758.82/4,136.40 = 1,113.30/x
3. Step 3: Cross multiply
   2,758.82x = 4,136.40 × 1,113.30
4. Step 4: Simplify right side
   2,758.82x = 4,605,054.12
5. Step 5: Solve for x
   x = 4,605,054.12/2,758.82
6. Step 6: Final answer
   x = 1,669.21