Finding the Fourth Proportional to 2,086.28, 2,876.00 and 1,588.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.28 : 2,876.00 = 1,588.05 : x
2. Step 2: Convert to fraction form
   2,086.28/2,876.00 = 1,588.05/x
3. Step 3: Cross multiply
   2,086.28x = 2,876.00 × 1,588.05
4. Step 4: Simplify right side
   2,086.28x = 4,567,246.56
5. Step 5: Solve for x
   x = 4,567,246.56/2,086.28
6. Step 6: Final answer
   x = 2,189.18