Finding the Fourth Proportional to 1,666.68, 2,498.49 and 1,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.68 : 2,498.49 = 1,048.50 : x
2. Step 2: Convert to fraction form
   1,666.68/2,498.49 = 1,048.50/x
3. Step 3: Cross multiply
   1,666.68x = 2,498.49 × 1,048.50
4. Step 4: Simplify right side
   1,666.68x = 2,619,666.77
5. Step 5: Solve for x
   x = 2,619,666.77/1,666.68
6. Step 6: Final answer
   x = 1,571.79