Finding the Fourth Proportional to 1,934.55, 2,667.96 and 1,561.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,934.55 : 2,667.96 = 1,561.41 : x
2. Step 2: Convert to fraction form
   1,934.55/2,667.96 = 1,561.41/x
3. Step 3: Cross multiply
   1,934.55x = 2,667.96 × 1,561.41
4. Step 4: Simplify right side
   1,934.55x = 4,165,779.42
5. Step 5: Solve for x
   x = 4,165,779.42/1,934.55
6. Step 6: Final answer
   x = 2,153.36