Finding the Fourth Proportional to 1,576.82, 2,175.93 and 947.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,576.82 : 2,175.93 = 947.72 : x
2. Step 2: Convert to fraction form
   1,576.82/2,175.93 = 947.72/x
3. Step 3: Cross multiply
   1,576.82x = 2,175.93 × 947.72
4. Step 4: Simplify right side
   1,576.82x = 2,062,172.38
5. Step 5: Solve for x
   x = 2,062,172.38/1,576.82
6. Step 6: Final answer
   x = 1,307.80