Finding the Fourth Proportional to 3,777.32, 5,661.05 and 1,926.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.32 : 5,661.05 = 1,926.87 : x
2. Step 2: Convert to fraction form
   3,777.32/5,661.05 = 1,926.87/x
3. Step 3: Cross multiply
   3,777.32x = 5,661.05 × 1,926.87
4. Step 4: Simplify right side
   3,777.32x = 10,908,097.78
5. Step 5: Solve for x
   x = 10,908,097.78/3,777.32
6. Step 6: Final answer
   x = 2,887.79