Finding the Fourth Proportional to 3,061.25, 4,588.71 and 1,211.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.25 : 4,588.71 = 1,211.61 : x
2. Step 2: Convert to fraction form
   3,061.25/4,588.71 = 1,211.61/x
3. Step 3: Cross multiply
   3,061.25x = 4,588.71 × 1,211.61
4. Step 4: Simplify right side
   3,061.25x = 5,559,726.92
5. Step 5: Solve for x
   x = 5,559,726.92/3,061.25
6. Step 6: Final answer
   x = 1,816.17