Finding the Fourth Proportional to 1,106.74, 1,528.85 and 1,048.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.74 : 1,528.85 = 1,048.42 : x
2. Step 2: Convert to fraction form
   1,106.74/1,528.85 = 1,048.42/x
3. Step 3: Cross multiply
   1,106.74x = 1,528.85 × 1,048.42
4. Step 4: Simplify right side
   1,106.74x = 1,602,875.72
5. Step 5: Solve for x
   x = 1,602,875.72/1,106.74
6. Step 6: Final answer
   x = 1,448.29