Finding the Fourth Proportional to 1,679.59, 2,514.52 and 1,402.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679.59 : 2,514.52 = 1,402.57 : x
2. Step 2: Convert to fraction form
   1,679.59/2,514.52 = 1,402.57/x
3. Step 3: Cross multiply
   1,679.59x = 2,514.52 × 1,402.57
4. Step 4: Simplify right side
   1,679.59x = 3,526,790.32
5. Step 5: Solve for x
   x = 3,526,790.32/1,679.59
6. Step 6: Final answer
   x = 2,099.79