Finding the Fourth Proportional to 1,628.63, 2,426.13 and 1,527.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628.63 : 2,426.13 = 1,527.78 : x
2. Step 2: Convert to fraction form
   1,628.63/2,426.13 = 1,527.78/x
3. Step 3: Cross multiply
   1,628.63x = 2,426.13 × 1,527.78
4. Step 4: Simplify right side
   1,628.63x = 3,706,592.89
5. Step 5: Solve for x
   x = 3,706,592.89/1,628.63
6. Step 6: Final answer
   x = 2,275.90