Finding the Fourth Proportional to 1,385.51, 1,908.29 and 1,199.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.51 : 1,908.29 = 1,199.00 : x
2. Step 2: Convert to fraction form
   1,385.51/1,908.29 = 1,199.00/x
3. Step 3: Cross multiply
   1,385.51x = 1,908.29 × 1,199.00
4. Step 4: Simplify right side
   1,385.51x = 2,288,047.48
5. Step 5: Solve for x
   x = 2,288,047.48/1,385.51
6. Step 6: Final answer
   x = 1,651.42