Finding the Fourth Proportional to 1,604.76, 2,212.18 and 1,131.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.76 : 2,212.18 = 1,131.12 : x
2. Step 2: Convert to fraction form
   1,604.76/2,212.18 = 1,131.12/x
3. Step 3: Cross multiply
   1,604.76x = 2,212.18 × 1,131.12
4. Step 4: Simplify right side
   1,604.76x = 2,502,241.04
5. Step 5: Solve for x
   x = 2,502,241.04/1,604.76
6. Step 6: Final answer
   x = 1,559.26