Finding the Fourth Proportional to 1,975.59, 2,963.72 and 879.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,975.59 : 2,963.72 = 879.93 : x
2. Step 2: Convert to fraction form
   1,975.59/2,963.72 = 879.93/x
3. Step 3: Cross multiply
   1,975.59x = 2,963.72 × 879.93
4. Step 4: Simplify right side
   1,975.59x = 2,607,868.34
5. Step 5: Solve for x
   x = 2,607,868.34/1,975.59
6. Step 6: Final answer
   x = 1,320.05