Finding the Fourth Proportional to 1,112.25, 1,534.98 and 670.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.25 : 1,534.98 = 670.17 : x
2. Step 2: Convert to fraction form
   1,112.25/1,534.98 = 670.17/x
3. Step 3: Cross multiply
   1,112.25x = 1,534.98 × 670.17
4. Step 4: Simplify right side
   1,112.25x = 1,028,697.55
5. Step 5: Solve for x
   x = 1,028,697.55/1,112.25
6. Step 6: Final answer
   x = 924.88