Finding the Fourth Proportional to 2,525.32, 3,788.52 and 1,430.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.32 : 3,788.52 = 1,430.20 : x
2. Step 2: Convert to fraction form
   2,525.32/3,788.52 = 1,430.20/x
3. Step 3: Cross multiply
   2,525.32x = 3,788.52 × 1,430.20
4. Step 4: Simplify right side
   2,525.32x = 5,418,341.30
5. Step 5: Solve for x
   x = 5,418,341.30/2,525.32
6. Step 6: Final answer
   x = 2,145.61