Finding the Fourth Proportional to 1,931.68, 2,899.05 and 1,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.68 : 2,899.05 = 1,007.50 : x
2. Step 2: Convert to fraction form
   1,931.68/2,899.05 = 1,007.50/x
3. Step 3: Cross multiply
   1,931.68x = 2,899.05 × 1,007.50
4. Step 4: Simplify right side
   1,931.68x = 2,920,792.88
5. Step 5: Solve for x
   x = 2,920,792.88/1,931.68
6. Step 6: Final answer
   x = 1,512.05