Finding the Fourth Proportional to 1,112.34, 1,534.82 and 670.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.34 : 1,534.82 = 670.28 : x
2. Step 2: Convert to fraction form
   1,112.34/1,534.82 = 670.28/x
3. Step 3: Cross multiply
   1,112.34x = 1,534.82 × 670.28
4. Step 4: Simplify right side
   1,112.34x = 1,028,759.15
5. Step 5: Solve for x
   x = 1,028,759.15/1,112.34
6. Step 6: Final answer
   x = 924.86