Finding the Fourth Proportional to 2,089.41, 3,130.50 and 1,112.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.41 : 3,130.50 = 1,112.55 : x
2. Step 2: Convert to fraction form
   2,089.41/3,130.50 = 1,112.55/x
3. Step 3: Cross multiply
   2,089.41x = 3,130.50 × 1,112.55
4. Step 4: Simplify right side
   2,089.41x = 3,482,837.78
5. Step 5: Solve for x
   x = 3,482,837.78/2,089.41
6. Step 6: Final answer
   x = 1,666.90