Finding the Fourth Proportional to 1,372.54, 1,892.55 and 1,106.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.54 : 1,892.55 = 1,106.86 : x
2. Step 2: Convert to fraction form
   1,372.54/1,892.55 = 1,106.86/x
3. Step 3: Cross multiply
   1,372.54x = 1,892.55 × 1,106.86
4. Step 4: Simplify right side
   1,372.54x = 2,094,787.89
5. Step 5: Solve for x
   x = 2,094,787.89/1,372.54
6. Step 6: Final answer
   x = 1,526.21