Finding the Fourth Proportional to 2,583.99, 3,565.76 and 1,405.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.99 : 3,565.76 = 1,405.06 : x
2. Step 2: Convert to fraction form
   2,583.99/3,565.76 = 1,405.06/x
3. Step 3: Cross multiply
   2,583.99x = 3,565.76 × 1,405.06
4. Step 4: Simplify right side
   2,583.99x = 5,010,106.75
5. Step 5: Solve for x
   x = 5,010,106.75/2,583.99
6. Step 6: Final answer
   x = 1,938.90