Finding the Fourth Proportional to 2,756.01, 3,803.47 and 1,561.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.01 : 3,803.47 = 1,561.31 : x
2. Step 2: Convert to fraction form
   2,756.01/3,803.47 = 1,561.31/x
3. Step 3: Cross multiply
   2,756.01x = 3,803.47 × 1,561.31
4. Step 4: Simplify right side
   2,756.01x = 5,938,395.75
5. Step 5: Solve for x
   x = 5,938,395.75/2,756.01
6. Step 6: Final answer
   x = 2,154.71