Finding the Fourth Proportional to 2,588.61, 3,572.30 and 1,409.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.61 : 3,572.30 = 1,409.68 : x
2. Step 2: Convert to fraction form
   2,588.61/3,572.30 = 1,409.68/x
3. Step 3: Cross multiply
   2,588.61x = 3,572.30 × 1,409.68
4. Step 4: Simplify right side
   2,588.61x = 5,035,799.86
5. Step 5: Solve for x
   x = 5,035,799.86/2,588.61
6. Step 6: Final answer
   x = 1,945.37