Finding the Fourth Proportional to 1,870.08, 2,576.64 and 1,782.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.08 : 2,576.64 = 1,782.72 : x
2. Step 2: Convert to fraction form
   1,870.08/2,576.64 = 1,782.72/x
3. Step 3: Cross multiply
   1,870.08x = 2,576.64 × 1,782.72
4. Step 4: Simplify right side
   1,870.08x = 4,593,427.66
5. Step 5: Solve for x
   x = 4,593,427.66/1,870.08
6. Step 6: Final answer
   x = 2,456.27