Finding the Fourth Proportional to 1,175.05, 1,621.56 and 703.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175.05 : 1,621.56 = 703.15 : x
2. Step 2: Convert to fraction form
   1,175.05/1,621.56 = 703.15/x
3. Step 3: Cross multiply
   1,175.05x = 1,621.56 × 703.15
4. Step 4: Simplify right side
   1,175.05x = 1,140,199.91
5. Step 5: Solve for x
   x = 1,140,199.91/1,175.05
6. Step 6: Final answer
   x = 970.34