Finding the Fourth Proportional to 1,889.60, 2,610.14 and 1,575.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.60 : 2,610.14 = 1,575.89 : x
2. Step 2: Convert to fraction form
   1,889.60/2,610.14 = 1,575.89/x
3. Step 3: Cross multiply
   1,889.60x = 2,610.14 × 1,575.89
4. Step 4: Simplify right side
   1,889.60x = 4,113,272.59
5. Step 5: Solve for x
   x = 4,113,272.59/1,889.60
6. Step 6: Final answer
   x = 2,176.80