Finding the Fourth Proportional to 3,131.38, 4,696.20 and 1,051.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131.38 : 4,696.20 = 1,051.42 : x
2. Step 2: Convert to fraction form
   3,131.38/4,696.20 = 1,051.42/x
3. Step 3: Cross multiply
   3,131.38x = 4,696.20 × 1,051.42
4. Step 4: Simplify right side
   3,131.38x = 4,937,678.60
5. Step 5: Solve for x
   x = 4,937,678.60/3,131.38
6. Step 6: Final answer
   x = 1,576.84