Finding the Fourth Proportional to 1,756.59, 2,426.43 and 1,428.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,756.59 : 2,426.43 = 1,428.99 : x
2. Step 2: Convert to fraction form
   1,756.59/2,426.43 = 1,428.99/x
3. Step 3: Cross multiply
   1,756.59x = 2,426.43 × 1,428.99
4. Step 4: Simplify right side
   1,756.59x = 3,467,350.09
5. Step 5: Solve for x
   x = 3,467,350.09/1,756.59
6. Step 6: Final answer
   x = 1,973.91