Finding the Fourth Proportional to 1,256.02, 1,883.82 and 693.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256.02 : 1,883.82 = 693.31 : x
2. Step 2: Convert to fraction form
   1,256.02/1,883.82 = 693.31/x
3. Step 3: Cross multiply
   1,256.02x = 1,883.82 × 693.31
4. Step 4: Simplify right side
   1,256.02x = 1,306,071.24
5. Step 5: Solve for x
   x = 1,306,071.24/1,256.02
6. Step 6: Final answer
   x = 1,039.85