Finding the Fourth Proportional to 1,916.16, 2,875.52 and 1,050.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916.16 : 2,875.52 = 1,050.72 : x
2. Step 2: Convert to fraction form
   1,916.16/2,875.52 = 1,050.72/x
3. Step 3: Cross multiply
   1,916.16x = 2,875.52 × 1,050.72
4. Step 4: Simplify right side
   1,916.16x = 3,021,366.37
5. Step 5: Solve for x
   x = 3,021,366.37/1,916.16
6. Step 6: Final answer
   x = 1,576.78