Finding the Fourth Proportional to 1,869.93, 2,580.56 and 1,030.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,869.93 : 2,580.56 = 1,030.69 : x
2. Step 2: Convert to fraction form
   1,869.93/2,580.56 = 1,030.69/x
3. Step 3: Cross multiply
   1,869.93x = 2,580.56 × 1,030.69
4. Step 4: Simplify right side
   1,869.93x = 2,659,759.86
5. Step 5: Solve for x
   x = 2,659,759.86/1,869.93
6. Step 6: Final answer
   x = 1,422.38