Finding the Fourth Proportional to 1,890.24, 2,820.72 and 1,875.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.24 : 2,820.72 = 1,875.84 : x
2. Step 2: Convert to fraction form
   1,890.24/2,820.72 = 1,875.84/x
3. Step 3: Cross multiply
   1,890.24x = 2,820.72 × 1,875.84
4. Step 4: Simplify right side
   1,890.24x = 5,291,219.40
5. Step 5: Solve for x
   x = 5,291,219.40/1,890.24
6. Step 6: Final answer
   x = 2,799.23