Finding the Fourth Proportional to 3,131.10, 4,696.18 and 1,050.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.10 : 4,696.18 = 1,050.75 : x
2. Step 2: Convert to fraction form
   3,131.10/4,696.18 = 1,050.75/x
3. Step 3: Cross multiply
   3,131.10x = 4,696.18 × 1,050.75
4. Step 4: Simplify right side
   3,131.10x = 4,934,508.51
5. Step 5: Solve for x
   x = 4,934,508.51/3,131.10
6. Step 6: Final answer
   x = 1,575.97