Finding the Fourth Proportional to 1,507.33, 2,079.76 and 877.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.33 : 2,079.76 = 877.48 : x
2. Step 2: Convert to fraction form
   1,507.33/2,079.76 = 877.48/x
3. Step 3: Cross multiply
   1,507.33x = 2,079.76 × 877.48
4. Step 4: Simplify right side
   1,507.33x = 1,824,947.80
5. Step 5: Solve for x
   x = 1,824,947.80/1,507.33
6. Step 6: Final answer
   x = 1,210.72