Finding the Fourth Proportional to 1,253.32, 1,871.01 and 1,089.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.32 : 1,871.01 = 1,089.34 : x
2. Step 2: Convert to fraction form
   1,253.32/1,871.01 = 1,089.34/x
3. Step 3: Cross multiply
   1,253.32x = 1,871.01 × 1,089.34
4. Step 4: Simplify right side
   1,253.32x = 2,038,166.03
5. Step 5: Solve for x
   x = 2,038,166.03/1,253.32
6. Step 6: Final answer
   x = 1,626.21