Finding the Fourth Proportional to 1,208.72, 1,669.56 and 1,051.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.72 : 1,669.56 = 1,051.04 : x
2. Step 2: Convert to fraction form
   1,208.72/1,669.56 = 1,051.04/x
3. Step 3: Cross multiply
   1,208.72x = 1,669.56 × 1,051.04
4. Step 4: Simplify right side
   1,208.72x = 1,754,774.34
5. Step 5: Solve for x
   x = 1,754,774.34/1,208.72
6. Step 6: Final answer
   x = 1,451.76