Finding the Fourth Proportional to 1,889.72, 2,830.98 and 1,430.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.72 : 2,830.98 = 1,430.52 : x
2. Step 2: Convert to fraction form
   1,889.72/2,830.98 = 1,430.52/x
3. Step 3: Cross multiply
   1,889.72x = 2,830.98 × 1,430.52
4. Step 4: Simplify right side
   1,889.72x = 4,049,773.51
5. Step 5: Solve for x
   x = 4,049,773.51/1,889.72
6. Step 6: Final answer
   x = 2,143.05