Finding the Fourth Proportional to 2,090.89, 3,123.09 and 1,970.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.89 : 3,123.09 = 1,970.93 : x
2. Step 2: Convert to fraction form
   2,090.89/3,123.09 = 1,970.93/x
3. Step 3: Cross multiply
   2,090.89x = 3,123.09 × 1,970.93
4. Step 4: Simplify right side
   2,090.89x = 6,155,381.92
5. Step 5: Solve for x
   x = 6,155,381.92/2,090.89
6. Step 6: Final answer
   x = 2,943.91