Finding the Fourth Proportional to 1,753.17, 2,630.53 and 931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,753.17 : 2,630.53 = 931.25 : x
2. Step 2: Convert to fraction form
   1,753.17/2,630.53 = 931.25/x
3. Step 3: Cross multiply
   1,753.17x = 2,630.53 × 931.25
4. Step 4: Simplify right side
   1,753.17x = 2,449,667.91
5. Step 5: Solve for x
   x = 2,449,667.91/1,753.17
6. Step 6: Final answer
   x = 1,397.28