Finding the Fourth Proportional to 1,348.51, 1,856.25 and 1,173.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.51 : 1,856.25 = 1,173.55 : x
2. Step 2: Convert to fraction form
   1,348.51/1,856.25 = 1,173.55/x
3. Step 3: Cross multiply
   1,348.51x = 1,856.25 × 1,173.55
4. Step 4: Simplify right side
   1,348.51x = 2,178,402.19
5. Step 5: Solve for x
   x = 2,178,402.19/1,348.51
6. Step 6: Final answer
   x = 1,615.41