Finding the Fourth Proportional to 1,970.34, 2,954.72 and 873.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.34 : 2,954.72 = 873.96 : x
2. Step 2: Convert to fraction form
   1,970.34/2,954.72 = 873.96/x
3. Step 3: Cross multiply
   1,970.34x = 2,954.72 × 873.96
4. Step 4: Simplify right side
   1,970.34x = 2,582,302.72
5. Step 5: Solve for x
   x = 2,582,302.72/1,970.34
6. Step 6: Final answer
   x = 1,310.59