Finding the Fourth Proportional to 2,526.48, 3,485.40 and 1,478.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.48 : 3,485.40 = 1,478.10 : x
2. Step 2: Convert to fraction form
   2,526.48/3,485.40 = 1,478.10/x
3. Step 3: Cross multiply
   2,526.48x = 3,485.40 × 1,478.10
4. Step 4: Simplify right side
   2,526.48x = 5,151,769.74
5. Step 5: Solve for x
   x = 5,151,769.74/2,526.48
6. Step 6: Final answer
   x = 2,039.11