Finding the Fourth Proportional to 2,774.16, 4,159.42 and 1,131.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.16 : 4,159.42 = 1,131.21 : x
2. Step 2: Convert to fraction form
   2,774.16/4,159.42 = 1,131.21/x
3. Step 3: Cross multiply
   2,774.16x = 4,159.42 × 1,131.21
4. Step 4: Simplify right side
   2,774.16x = 4,705,174.67
5. Step 5: Solve for x
   x = 4,705,174.67/2,774.16
6. Step 6: Final answer
   x = 1,696.07