Finding the Fourth Proportional to 1,564.28, 2,157.93 and 1,034.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564.28 : 2,157.93 = 1,034.09 : x
2. Step 2: Convert to fraction form
   1,564.28/2,157.93 = 1,034.09/x
3. Step 3: Cross multiply
   1,564.28x = 2,157.93 × 1,034.09
4. Step 4: Simplify right side
   1,564.28x = 2,231,483.04
5. Step 5: Solve for x
   x = 2,231,483.04/1,564.28
6. Step 6: Final answer
   x = 1,426.53