Finding the Fourth Proportional to 4,061.34, 6,089.72 and 1,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061.34 : 6,089.72 = 1,287.50 : x
2. Step 2: Convert to fraction form
   4,061.34/6,089.72 = 1,287.50/x
3. Step 3: Cross multiply
   4,061.34x = 6,089.72 × 1,287.50
4. Step 4: Simplify right side
   4,061.34x = 7,840,477.61
5. Step 5: Solve for x
   x = 7,840,477.61/4,061.34
6. Step 6: Final answer
   x = 1,930.51