Finding the Fourth Proportional to 2,102.83, 2,901.91 and 1,263.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.83 : 2,901.91 = 1,263.55 : x
2. Step 2: Convert to fraction form
   2,102.83/2,901.91 = 1,263.55/x
3. Step 3: Cross multiply
   2,102.83x = 2,901.91 × 1,263.55
4. Step 4: Simplify right side
   2,102.83x = 3,666,703.52
5. Step 5: Solve for x
   x = 3,666,703.52/2,102.83
6. Step 6: Final answer
   x = 1,743.70