Finding the Fourth Proportional to 1,870.10, 2,582.11 and 1,207.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.10 : 2,582.11 = 1,207.34 : x
2. Step 2: Convert to fraction form
   1,870.10/2,582.11 = 1,207.34/x
3. Step 3: Cross multiply
   1,870.10x = 2,582.11 × 1,207.34
4. Step 4: Simplify right side
   1,870.10x = 3,117,484.69
5. Step 5: Solve for x
   x = 3,117,484.69/1,870.10
6. Step 6: Final answer
   x = 1,667.01