Finding the Fourth Proportional to 2,887.89, 4,330.79 and 1,406.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.89 : 4,330.79 = 1,406.67 : x
2. Step 2: Convert to fraction form
   2,887.89/4,330.79 = 1,406.67/x
3. Step 3: Cross multiply
   2,887.89x = 4,330.79 × 1,406.67
4. Step 4: Simplify right side
   2,887.89x = 6,091,996.83
5. Step 5: Solve for x
   x = 6,091,996.83/2,887.89
6. Step 6: Final answer
   x = 2,109.49