Finding the Fourth Proportional to 1,916.59, 2,643.57 and 1,852.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916.59 : 2,643.57 = 1,852.31 : x
2. Step 2: Convert to fraction form
   1,916.59/2,643.57 = 1,852.31/x
3. Step 3: Cross multiply
   1,916.59x = 2,643.57 × 1,852.31
4. Step 4: Simplify right side
   1,916.59x = 4,896,697.93
5. Step 5: Solve for x
   x = 4,896,697.93/1,916.59
6. Step 6: Final answer
   x = 2,554.90