Finding the Fourth Proportional to 3,155.72, 4,731.25 and 1,075.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,155.72 : 4,731.25 = 1,075.17 : x
2. Step 2: Convert to fraction form
   3,155.72/4,731.25 = 1,075.17/x
3. Step 3: Cross multiply
   3,155.72x = 4,731.25 × 1,075.17
4. Step 4: Simplify right side
   3,155.72x = 5,086,898.06
5. Step 5: Solve for x
   x = 5,086,898.06/3,155.72
6. Step 6: Final answer
   x = 1,611.96