Finding the Fourth Proportional to 1,889.10, 2,830.76 and 1,270.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.10 : 2,830.76 = 1,270.52 : x
2. Step 2: Convert to fraction form
   1,889.10/2,830.76 = 1,270.52/x
3. Step 3: Cross multiply
   1,889.10x = 2,830.76 × 1,270.52
4. Step 4: Simplify right side
   1,889.10x = 3,596,526.22
5. Step 5: Solve for x
   x = 3,596,526.22/1,889.10
6. Step 6: Final answer
   x = 1,903.83