Finding the Fourth Proportional to 1,887.62, 2,814.20 and 1,839.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,887.62 : 2,814.20 = 1,839.67 : x
2. Step 2: Convert to fraction form
   1,887.62/2,814.20 = 1,839.67/x
3. Step 3: Cross multiply
   1,887.62x = 2,814.20 × 1,839.67
4. Step 4: Simplify right side
   1,887.62x = 5,177,196.88
5. Step 5: Solve for x
   x = 5,177,196.88/1,887.62
6. Step 6: Final answer
   x = 2,742.71