Finding the Fourth Proportional to 1,916.86, 2,647.87 and 1,502.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916.86 : 2,647.87 = 1,502.45 : x
2. Step 2: Convert to fraction form
   1,916.86/2,647.87 = 1,502.45/x
3. Step 3: Cross multiply
   1,916.86x = 2,647.87 × 1,502.45
4. Step 4: Simplify right side
   1,916.86x = 3,978,292.28
5. Step 5: Solve for x
   x = 3,978,292.28/1,916.86
6. Step 6: Final answer
   x = 2,075.42