Finding the Fourth Proportional to 2,054.00, 3,081.30 and 666.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.00 : 3,081.30 = 666.87 : x
2. Step 2: Convert to fraction form
   2,054.00/3,081.30 = 666.87/x
3. Step 3: Cross multiply
   2,054.00x = 3,081.30 × 666.87
4. Step 4: Simplify right side
   2,054.00x = 2,054,826.53
5. Step 5: Solve for x
   x = 2,054,826.53/2,054.00
6. Step 6: Final answer
   x = 1,000.40