Finding the Fourth Proportional to 1,003.37, 1,504.98 and 712.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.37 : 1,504.98 = 712.13 : x
2. Step 2: Convert to fraction form
   1,003.37/1,504.98 = 712.13/x
3. Step 3: Cross multiply
   1,003.37x = 1,504.98 × 712.13
4. Step 4: Simplify right side
   1,003.37x = 1,071,733.88
5. Step 5: Solve for x
   x = 1,071,733.88/1,003.37
6. Step 6: Final answer
   x = 1,068.14