Finding the Fourth Proportional to 1,575.02, 2,173.98 and 912.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.02 : 2,173.98 = 912.32 : x
2. Step 2: Convert to fraction form
   1,575.02/2,173.98 = 912.32/x
3. Step 3: Cross multiply
   1,575.02x = 2,173.98 × 912.32
4. Step 4: Simplify right side
   1,575.02x = 1,983,365.43
5. Step 5: Solve for x
   x = 1,983,365.43/1,575.02
6. Step 6: Final answer
   x = 1,259.26