Finding the Fourth Proportional to 1,359.40, 1,875.94 and 761.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.40 : 1,875.94 = 761.88 : x
2. Step 2: Convert to fraction form
   1,359.40/1,875.94 = 761.88/x
3. Step 3: Cross multiply
   1,359.40x = 1,875.94 × 761.88
4. Step 4: Simplify right side
   1,359.40x = 1,429,241.17
5. Step 5: Solve for x
   x = 1,429,241.17/1,359.40
6. Step 6: Final answer
   x = 1,051.38