Finding the Fourth Proportional to 1,992.27, 2,748.06 and 1,285.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992.27 : 2,748.06 = 1,285.02 : x
2. Step 2: Convert to fraction form
   1,992.27/2,748.06 = 1,285.02/x
3. Step 3: Cross multiply
   1,992.27x = 2,748.06 × 1,285.02
4. Step 4: Simplify right side
   1,992.27x = 3,531,312.06
5. Step 5: Solve for x
   x = 3,531,312.06/1,992.27
6. Step 6: Final answer
   x = 1,772.51