Finding the Fourth Proportional to 1,814.50, 2,719.71 and 992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.50 : 2,719.71 = 992.50 : x
2. Step 2: Convert to fraction form
   1,814.50/2,719.71 = 992.50/x
3. Step 3: Cross multiply
   1,814.50x = 2,719.71 × 992.50
4. Step 4: Simplify right side
   1,814.50x = 2,699,312.18
5. Step 5: Solve for x
   x = 2,699,312.18/1,814.50
6. Step 6: Final answer
   x = 1,487.63