Finding the Fourth Proportional to 1,111.96, 1,534.16 and 669.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.96 : 1,534.16 = 669.96 : x
2. Step 2: Convert to fraction form
   1,111.96/1,534.16 = 669.96/x
3. Step 3: Cross multiply
   1,111.96x = 1,534.16 × 669.96
4. Step 4: Simplify right side
   1,111.96x = 1,027,825.83
5. Step 5: Solve for x
   x = 1,027,825.83/1,111.96
6. Step 6: Final answer
   x = 924.34