Finding the Fourth Proportional to 1,870.06, 2,580.83 and 1,030.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.06 : 2,580.83 = 1,030.84 : x
2. Step 2: Convert to fraction form
   1,870.06/2,580.83 = 1,030.84/x
3. Step 3: Cross multiply
   1,870.06x = 2,580.83 × 1,030.84
4. Step 4: Simplify right side
   1,870.06x = 2,660,416.78
5. Step 5: Solve for x
   x = 2,660,416.78/1,870.06
6. Step 6: Final answer
   x = 1,422.64