Finding the Fourth Proportional to 1,588.98, 2,191.14 and 1,065.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.98 : 2,191.14 = 1,065.72 : x
2. Step 2: Convert to fraction form
   1,588.98/2,191.14 = 1,065.72/x
3. Step 3: Cross multiply
   1,588.98x = 2,191.14 × 1,065.72
4. Step 4: Simplify right side
   1,588.98x = 2,335,141.72
5. Step 5: Solve for x
   x = 2,335,141.72/1,588.98
6. Step 6: Final answer
   x = 1,469.59