Finding the Fourth Proportional to 1,919.17, 2,876.67 and 929.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.17 : 2,876.67 = 929.89 : x
2. Step 2: Convert to fraction form
   1,919.17/2,876.67 = 929.89/x
3. Step 3: Cross multiply
   1,919.17x = 2,876.67 × 929.89
4. Step 4: Simplify right side
   1,919.17x = 2,674,973.45
5. Step 5: Solve for x
   x = 2,674,973.45/1,919.17
6. Step 6: Final answer
   x = 1,393.82