Finding the Fourth Proportional to 1,886.10, 2,830.01 and 790.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.10 : 2,830.01 = 790.71 : x
2. Step 2: Convert to fraction form
   1,886.10/2,830.01 = 790.71/x
3. Step 3: Cross multiply
   1,886.10x = 2,830.01 × 790.71
4. Step 4: Simplify right side
   1,886.10x = 2,237,713.25
5. Step 5: Solve for x
   x = 2,237,713.25/1,886.10
6. Step 6: Final answer
   x = 1,186.42