Finding the Fourth Proportional to 2,580.99, 3,561.75 and 1,402.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.99 : 3,561.75 = 1,402.05 : x
2. Step 2: Convert to fraction form
   2,580.99/3,561.75 = 1,402.05/x
3. Step 3: Cross multiply
   2,580.99x = 3,561.75 × 1,402.05
4. Step 4: Simplify right side
   2,580.99x = 4,993,733.78
5. Step 5: Solve for x
   x = 4,993,733.78/2,580.99
6. Step 6: Final answer
   x = 1,934.82