Finding the Fourth Proportional to 1,870.18, 2,580.33 and 1,207.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.18 : 2,580.33 = 1,207.06 : x
2. Step 2: Convert to fraction form
   1,870.18/2,580.33 = 1,207.06/x
3. Step 3: Cross multiply
   1,870.18x = 2,580.33 × 1,207.06
4. Step 4: Simplify right side
   1,870.18x = 3,114,613.13
5. Step 5: Solve for x
   x = 3,114,613.13/1,870.18
6. Step 6: Final answer
   x = 1,665.41