Finding the Fourth Proportional to 1,980.86, 2,962.55 and 1,762.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.86 : 2,962.55 = 1,762.91 : x
2. Step 2: Convert to fraction form
   1,980.86/2,962.55 = 1,762.91/x
3. Step 3: Cross multiply
   1,980.86x = 2,962.55 × 1,762.91
4. Step 4: Simplify right side
   1,980.86x = 5,222,721.43
5. Step 5: Solve for x
   x = 5,222,721.43/1,980.86
6. Step 6: Final answer
   x = 2,636.60