Finding the Fourth Proportional to 2,071.52, 2,858.70 and 1,127.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.52 : 2,858.70 = 1,127.32 : x
2. Step 2: Convert to fraction form
   2,071.52/2,858.70 = 1,127.32/x
3. Step 3: Cross multiply
   2,071.52x = 2,858.70 × 1,127.32
4. Step 4: Simplify right side
   2,071.52x = 3,222,656.47
5. Step 5: Solve for x
   x = 3,222,656.47/2,071.52
6. Step 6: Final answer
   x = 1,555.70