Finding the Fourth Proportional to 2,071.06, 2,858.72 and 1,274.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.06 : 2,858.72 = 1,274.64 : x
2. Step 2: Convert to fraction form
   2,071.06/2,858.72 = 1,274.64/x
3. Step 3: Cross multiply
   2,071.06x = 2,858.72 × 1,274.64
4. Step 4: Simplify right side
   2,071.06x = 3,643,838.86
5. Step 5: Solve for x
   x = 3,643,838.86/2,071.06
6. Step 6: Final answer
   x = 1,759.41