Finding the Fourth Proportional to 1,870.10, 2,580.73 and 1,084.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.10 : 2,580.73 = 1,084.60 : x
2. Step 2: Convert to fraction form
   1,870.10/2,580.73 = 1,084.60/x
3. Step 3: Cross multiply
   1,870.10x = 2,580.73 × 1,084.60
4. Step 4: Simplify right side
   1,870.10x = 2,799,054.34
5. Step 5: Solve for x
   x = 2,799,054.34/1,870.10
6. Step 6: Final answer
   x = 1,496.74