Finding the Fourth Proportional to 2,051.07, 2,830.47 and 1,265.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.07 : 2,830.47 = 1,265.57 : x
2. Step 2: Convert to fraction form
   2,051.07/2,830.47 = 1,265.57/x
3. Step 3: Cross multiply
   2,051.07x = 2,830.47 × 1,265.57
4. Step 4: Simplify right side
   2,051.07x = 3,582,143.77
5. Step 5: Solve for x
   x = 3,582,143.77/2,051.07
6. Step 6: Final answer
   x = 1,746.48