Finding the Fourth Proportional to 1,527.30, 2,133.90 and 1,527.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.30 : 2,133.90 = 1,527.30 : x
2. Step 2: Convert to fraction form
   1,527.30/2,133.90 = 1,527.30/x
3. Step 3: Cross multiply
   1,527.30x = 2,133.90 × 1,527.30
4. Step 4: Simplify right side
   1,527.30x = 3,259,105.47
5. Step 5: Solve for x
   x = 3,259,105.47/1,527.30
6. Step 6: Final answer
   x = 2,133.90