Finding the Fourth Proportional to 1,113.39, 1,535.76 and 670.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.39 : 1,535.76 = 670.83 : x
2. Step 2: Convert to fraction form
   1,113.39/1,535.76 = 670.83/x
3. Step 3: Cross multiply
   1,113.39x = 1,535.76 × 670.83
4. Step 4: Simplify right side
   1,113.39x = 1,030,233.88
5. Step 5: Solve for x
   x = 1,030,233.88/1,113.39
6. Step 6: Final answer
   x = 925.31