Finding the Fourth Proportional to 1,053.42, 1,453.59 and 703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.42 : 1,453.59 = 703.50 : x
2. Step 2: Convert to fraction form
   1,053.42/1,453.59 = 703.50/x
3. Step 3: Cross multiply
   1,053.42x = 1,453.59 × 703.50
4. Step 4: Simplify right side
   1,053.42x = 1,022,600.57
5. Step 5: Solve for x
   x = 1,022,600.57/1,053.42
6. Step 6: Final answer
   x = 970.74