Finding the Fourth Proportional to 1,972.42, 2,959.49 and 1,047.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,972.42 : 2,959.49 = 1,047.76 : x
2. Step 2: Convert to fraction form
   1,972.42/2,959.49 = 1,047.76/x
3. Step 3: Cross multiply
   1,972.42x = 2,959.49 × 1,047.76
4. Step 4: Simplify right side
   1,972.42x = 3,100,830.46
5. Step 5: Solve for x
   x = 3,100,830.46/1,972.42
6. Step 6: Final answer
   x = 1,572.10