Finding the Fourth Proportional to 3,369.72, 5,055.10 and 1,061

Step by Step Solution

1. Step 1: Write the proportion equation
   3,369.72 : 5,055.10 = 1,061 : x
2. Step 2: Convert to fraction form
   3,369.72/5,055.10 = 1,061/x
3. Step 3: Cross multiply
   3,369.72x = 5,055.10 × 1,061
4. Step 4: Simplify right side
   3,369.72x = 5,363,461.10
5. Step 5: Solve for x
   x = 5,363,461.10/3,369.72
6. Step 6: Final answer
   x = 1,591.66