Finding the Fourth Proportional to 1,315.54, 1,973.01 and 584.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315.54 : 1,973.01 = 584.72 : x
2. Step 2: Convert to fraction form
   1,315.54/1,973.01 = 584.72/x
3. Step 3: Cross multiply
   1,315.54x = 1,973.01 × 584.72
4. Step 4: Simplify right side
   1,315.54x = 1,153,654.84
5. Step 5: Solve for x
   x = 1,153,654.84/1,315.54
6. Step 6: Final answer
   x = 876.94