Finding the Fourth Proportional to 1,980.18, 2,971.06 and 747.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.18 : 2,971.06 = 747.93 : x
2. Step 2: Convert to fraction form
   1,980.18/2,971.06 = 747.93/x
3. Step 3: Cross multiply
   1,980.18x = 2,971.06 × 747.93
4. Step 4: Simplify right side
   1,980.18x = 2,222,158.38
5. Step 5: Solve for x
   x = 2,222,158.38/1,980.18
6. Step 6: Final answer
   x = 1,122.20