Finding the Fourth Proportional to 2,621.60, 3,916.45 and 1,875.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.60 : 3,916.45 = 1,875.29 : x
2. Step 2: Convert to fraction form
   2,621.60/3,916.45 = 1,875.29/x
3. Step 3: Cross multiply
   2,621.60x = 3,916.45 × 1,875.29
4. Step 4: Simplify right side
   2,621.60x = 7,344,462.28
5. Step 5: Solve for x
   x = 7,344,462.28/2,621.60
6. Step 6: Final answer
   x = 2,801.52