Finding the Fourth Proportional to 1,146.49, 1,581.78 and 703.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.49 : 1,581.78 = 703.93 : x
2. Step 2: Convert to fraction form
   1,146.49/1,581.78 = 703.93/x
3. Step 3: Cross multiply
   1,146.49x = 1,581.78 × 703.93
4. Step 4: Simplify right side
   1,146.49x = 1,113,462.40
5. Step 5: Solve for x
   x = 1,113,462.40/1,146.49
6. Step 6: Final answer
   x = 971.19