Finding the Fourth Proportional to 2,131.48, 2,937.36 and 1,776.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.48 : 2,937.36 = 1,776.70 : x
2. Step 2: Convert to fraction form
   2,131.48/2,937.36 = 1,776.70/x
3. Step 3: Cross multiply
   2,131.48x = 2,937.36 × 1,776.70
4. Step 4: Simplify right side
   2,131.48x = 5,218,807.51
5. Step 5: Solve for x
   x = 5,218,807.51/2,131.48
6. Step 6: Final answer
   x = 2,448.44