Finding the Fourth Proportional to 3,360.16, 5,040.72 and 1,051.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,360.16 : 5,040.72 = 1,051.12 : x
2. Step 2: Convert to fraction form
   3,360.16/5,040.72 = 1,051.12/x
3. Step 3: Cross multiply
   3,360.16x = 5,040.72 × 1,051.12
4. Step 4: Simplify right side
   3,360.16x = 5,298,401.61
5. Step 5: Solve for x
   x = 5,298,401.61/3,360.16
6. Step 6: Final answer
   x = 1,576.83