Finding the Fourth Proportional to 1,881.98, 2,820.11 and 956.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,881.98 : 2,820.11 = 956.15 : x
2. Step 2: Convert to fraction form
   1,881.98/2,820.11 = 956.15/x
3. Step 3: Cross multiply
   1,881.98x = 2,820.11 × 956.15
4. Step 4: Simplify right side
   1,881.98x = 2,696,450.45
5. Step 5: Solve for x
   x = 2,696,450.45/1,881.98
6. Step 6: Final answer
   x = 1,432.77