Finding the Fourth Proportional to 1,921.00, 2,651.23 and 1,081.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.00 : 2,651.23 = 1,081.86 : x
2. Step 2: Convert to fraction form
   1,921.00/2,651.23 = 1,081.86/x
3. Step 3: Cross multiply
   1,921.00x = 2,651.23 × 1,081.86
4. Step 4: Simplify right side
   1,921.00x = 2,868,266.93
5. Step 5: Solve for x
   x = 2,868,266.93/1,921.00
6. Step 6: Final answer
   x = 1,493.11