Finding the Fourth Proportional to 1,145.82, 1,580.52 and 703.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.82 : 1,580.52 = 703.29 : x
2. Step 2: Convert to fraction form
   1,145.82/1,580.52 = 703.29/x
3. Step 3: Cross multiply
   1,145.82x = 1,580.52 × 703.29
4. Step 4: Simplify right side
   1,145.82x = 1,111,563.91
5. Step 5: Solve for x
   x = 1,111,563.91/1,145.82
6. Step 6: Final answer
   x = 970.10