Finding the Fourth Proportional to 2,071.55, 2,858.75 and 1,127.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.55 : 2,858.75 = 1,127.35 : x
2. Step 2: Convert to fraction form
   2,071.55/2,858.75 = 1,127.35/x
3. Step 3: Cross multiply
   2,071.55x = 2,858.75 × 1,127.35
4. Step 4: Simplify right side
   2,071.55x = 3,222,811.81
5. Step 5: Solve for x
   x = 3,222,811.81/2,071.55
6. Step 6: Final answer
   x = 1,555.75