Finding the Fourth Proportional to 2,051.55, 2,830.34 and 1,264.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.55 : 2,830.34 = 1,264.23 : x
2. Step 2: Convert to fraction form
   2,051.55/2,830.34 = 1,264.23/x
3. Step 3: Cross multiply
   2,051.55x = 2,830.34 × 1,264.23
4. Step 4: Simplify right side
   2,051.55x = 3,578,194.42
5. Step 5: Solve for x
   x = 3,578,194.42/2,051.55
6. Step 6: Final answer
   x = 1,744.14