Finding the Fourth Proportional to 2,071.48, 2,859.18 and 1,372.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.48 : 2,859.18 = 1,372.60 : x
2. Step 2: Convert to fraction form
   2,071.48/2,859.18 = 1,372.60/x
3. Step 3: Cross multiply
   2,071.48x = 2,859.18 × 1,372.60
4. Step 4: Simplify right side
   2,071.48x = 3,924,510.47
5. Step 5: Solve for x
   x = 3,924,510.47/2,071.48
6. Step 6: Final answer
   x = 1,894.54