Finding the Fourth Proportional to 1,053.02, 1,453.40 and 703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.02 : 1,453.40 = 703.50 : x
2. Step 2: Convert to fraction form
   1,053.02/1,453.40 = 703.50/x
3. Step 3: Cross multiply
   1,053.02x = 1,453.40 × 703.50
4. Step 4: Simplify right side
   1,053.02x = 1,022,463.38
5. Step 5: Solve for x
   x = 1,022,463.38/1,053.02
6. Step 6: Final answer
   x = 970.99