Finding the Fourth Proportional to 1,004.52, 1,381.32 and 973.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.52 : 1,381.32 = 973.80 : x
2. Step 2: Convert to fraction form
   1,004.52/1,381.32 = 973.80/x
3. Step 3: Cross multiply
   1,004.52x = 1,381.32 × 973.80
4. Step 4: Simplify right side
   1,004.52x = 1,345,129.42
5. Step 5: Solve for x
   x = 1,345,129.42/1,004.52
6. Step 6: Final answer
   x = 1,339.08