Finding the Fourth Proportional to 2,089.79, 3,130.76 and 1,048.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.79 : 3,130.76 = 1,048.56 : x
2. Step 2: Convert to fraction form
   2,089.79/3,130.76 = 1,048.56/x
3. Step 3: Cross multiply
   2,089.79x = 3,130.76 × 1,048.56
4. Step 4: Simplify right side
   2,089.79x = 3,282,784.46
5. Step 5: Solve for x
   x = 3,282,784.46/2,089.79
6. Step 6: Final answer
   x = 1,570.87