Finding the Fourth Proportional to 1,131.19, 1,561.57 and 758.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.19 : 1,561.57 = 758.41 : x
2. Step 2: Convert to fraction form
   1,131.19/1,561.57 = 758.41/x
3. Step 3: Cross multiply
   1,131.19x = 1,561.57 × 758.41
4. Step 4: Simplify right side
   1,131.19x = 1,184,302.50
5. Step 5: Solve for x
   x = 1,184,302.50/1,131.19
6. Step 6: Final answer
   x = 1,046.96